Full Text Searchable PDF User Manual
CallShop FONE DI$PLAY
Installation & Protocol Manual
Stand Alone Install &
Multiple Install via CallShop Concentrator
Issue 1.10
March 24 2008
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General :
The CallShop Phone Display is a device for controlling and displaying various features
related to the implementation of a CallShop.
The device is enclosed in a small plastic enclosure, and contains an LCD display and
connection jacks. Its internal microprocessor is capable of various functions related to
control and status of a telephone call, as well as display of call information on the LCD
screen for the user to see.
On the right side are the connection jacks. These provide the interconnect with the outside
world.
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Connecting the CallShop Fone Display is quite easy.
•
Plug the telephone line cord into the
Line Jack
.
•
Plug the telephone cord into the
Telephone Jack
•
Plug the AC Power Adapter into the
Power Jack
•
Plug an RJ45 Patch Cable (Standard network cable) into the
Serial Interface Jack
•
Plug an
RJ45 to DB9 Adapter
onto the end of the RJ45 Patch Cable
•
Plug the
RJ45 to DB9 Adapter
into a spare COM port of your PC.
The
RJ45 to DB9 Adapter
may be obtained directly from Telcom Research, or can be built
from a generic adapter. The connection information for making your own adapter is below:
9 Pin Fone Display Adapter
DB9
Male
or DB9
Female
DB9 Signal
Adapter
Color
Adapter
Pin
Number
1
DCD
-
N/C
2
RXD
Blue
1
3
TXD
Red
4
4
DTR
Green
5
5
GND
Yellow
6
6
DSR
-
N/C
7
RTS
-
N/C
8
CTS
-
N/C
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The CallShop Fone Display is controlled by a PC via serial communications. The PC’s COM
Port settings must be:
Baud Rate
2400
Data Bits
8
Stop Bits
1
Parity
None
Using this serial interface you can send message packets to the device to control its
behavior. Each message packet is ASCII data with a carriage return at the end of each
packet. This simple serial protocol allows for easy implementation and testing using
common tools.
Document Conventions:
In this document the following names and symbols will have the following meanings:
<CR>
Carriage Return
the hex value 0x0d (‘\r’)
0x
Hex Character Representation. The 2 digits after the 0x are a hex value.
ETX
The ASCII character ETX which is 0x03 or ‘\3’
Control Commands :
The following list of commands allows a PC program to control the operation of the
CallShop Fone Display
as part of an overall call shop solution.
Each command is a single ASCII character followed by 1 or more parameters as text, ending
with a
<CR>
Each command will cause the device to perform some function and respond
with a confirmation message which is the command character proceeded by the “^” and
ending with a
<CR>
Blank LCD Line X:
The “l” (lower case ‘L’) command will cause a line of the LCD display to be cleared or
blanked. This command is a 3 character command with the 2
nd
character being the line
number, 1 for top, and 2 for bottom.
Format:
lR
<CR>
l
= “l” (Lower case “L”
R
= Row (1 for line 1 and 2 for line 2)
Response:
^l
<CR>
The CallShop Fone Display will respond with this confirmation message
Example:
l2
<CT>
Clear line 2 of the LCD display
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Note : Clearing a line will only clear a line that contains text. If the line is populated with a
control such as a timer or clock then this will not be removed.
Display Full Screen:
The “L” command allows for the full screen (32 characters) to be written to all at once. The
command is the 34 character command.
Format:
LAAAAAAAAAAAAAAAABBBBBBBBBBBBBBBB
<CR>
L
= “L”
A
= 16 character field of text to appear on line 1 of the LCD display.
B
= 16 character field of text to appear on line 2 of the LCD display.
This command is only capable of filling the entire display. If you wish to
modify only a portion of the display, see the “Message” command.
Response:
^L
<CR>
The CallShop Fone Display will respond with this confirmation message
Message:
The “M” command provides the ability to put 1 or more characters any place on the LCD
display.
Format:
MRCCLLxxxxx
<CR>
M
= “M”
R
= Row (1 for line 1 and 2 for line 2)
CC
= Column (01 to 16)
LL
= Length
Xx
= Message characters
Response:
^M
<CR>
The CallShop Fone Display will respond with this confirmation message
Example:
M10311Hello World
<CR>
This example will put the words “Hello World” on line one starting at column 3 and
the message is 11 characters long.
Clock Set:
The “T” command provides the ability to set the devices real time clock.
Format :
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TYYMMDDWhhmmss
<CR>
T
= “T”
YY
= Year
MM
= Month
DD
= Day
W
= day of the week (Sunday is 1)
hh
= Hour
mm
= Minutes
ss
= Seconds
Response:
^T
<CR>
The CallShop Fone Display will respond with this confirmation message
Example:
T0802263182400
<CR>
This example sets the clock to February 26, 2008 at 18:24:00.
Clock Display:
The “t” command (lower case “T”) allows you to display the default clock on the LCD display
on either line 1 or line 2.
Format:
tx
<CR>
X = Row Number
0 = Do not display
1 = Display Clock on Line 1
2 = Display Clock on Line 2
Response:
^t
<CR>
The CallShop Fone Display will respond with this confirmation message
Example:
T1
<CR>
Put the lock on line one of the display
T0
<CR>
Turns off display of the clock, however the clock continues to run in case you
want to display it at a later time. Only a power interruption will cause the
clock to reset and loose time.
Duration Counter:
The “D” command will place a duration counter on the LCD at the location of your choice. A
duration counter will allow you to display the time used by the caller in seconds and
minutes, without the need to constantly update the LCD display.
Format:
DRCCDx
<CR>
D
= “D”
R
= Row ( 1 or 2 )
CC
= Column ( 1 to 16 )
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D
= Delimiter (character between seconds and minutes)
X
= Optional command. If this is a “C” then the counter is cleared.
Response:
^D
<CR>
The CallShop Fone Display will respond with this confirmation message
Example:
D101:C
<CR>
Display a duration timer on Row 1 at column 1 with a “:” between the
minutes and seconds. The display will look like this:
000:00
D000:
<CR>
This will cause the duration counter to be removed from the LCD display.
Duration Start/Stop:
The “d” (lower case “D”) command is used to start and stop the Duration Counter.
Format:
dxy
<CR>
d
= “d”
x
= Enable / Disable
1 = Enable
0 = Disable
y
= Optional command. If this character is a “C” then the counter
will also be reset to zero.
Response:
^d
<CR>
The CallShop Fone Display will respond with this confirmation message
Example:
d1
<CR>
This causes the duration counter to begin counting up.
d0
<CR>
This causes the duration counter to stop counting. The d1 command will then
allow you to turn the counter back on.
Cost Counter:
The “C” command will place a Cost Counter on the LCD at the location of your choice. A cost
counter will allow you to display the cost of the call incrementing automatically without the
need to constantly update the LCD display.
Format:
CRCCLDdSTTAAx
<CR>
C
= “C”
R
= Row ( 1 or 2 )
CC
= Column ( 1 to 16 )
L
= Length of the field
D
= Decimal Places
d
= Delimiter character.
S
= Currency Symbol. Can be any
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ASCII character or special character
TT
= Time Period
AA
= Amount to Add or Subtract each time period.
X
= Optional command
C = Clear the counter
R = Restart/continue the counter
Response:
^C
<CR>
The CallShop Fone Display will respond with this confirmation message
Example:
C10882.$1530C
<CR>
Display a cost counter on Row 1 at column 8 with a “$” at the start of the
field with a “.” To show 2 decimal places.
The filed would look like this:
$0000.00
This field is 8 characters long if you include the “$” and the “.”
C00000 0000C
<CR>
This will cause the Cost Counter to be removed from the LCD display.
Cost Start/Stop:
The “c” (lower case “C”) command is used to start and stop the Cost Counter.
Format:
cxy
<CR>
c
= “c”
x
= Enable / Disable
1 = Enable
0 = Disable
y
= Optional command.
If this character is a “C” then the counter will also be cleared.
If this character is an “S” then the counter will be preset to the
incremental amount (see AA from the “C” command above.
Response:
^c
<CR>
The CallShop Fone Display will respond with this confirmation message
Example:
c1C
<CR>
This causes the cost counter to be cleared, and then begin counting up.
c0
<CR>
This causes the cost counter to stop counting.
c1S
<CR>
This will cause the counter to be preset to the amount previously entered
from the “C” command (“AA” field above), and then begin counting.
Prepaid:
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The “P” command controls how the costing of a call is done. Costing can be done in two
ways. Standard Cost Mode and Prepaid Cost Mode.
In Standard Mode, the cost counter counts up from zero to tally the total amount of
the calls placed by the user.
In Prepaid Mode, the cost counter is preset to an amount (the amount deposited by
the user) and the proceeds to count down, subtracting amounts from the total to
provide to the user the amount of money he has left.
Format:
Pxxxxxxxx
<CR>
P
= “P”
X
= 8 digit amount with leading zeros.
This is the total to be displayed by the “C” command above.
Response:
^P
<CR>
The CallShop Fone Display will respond with this confirmation message
Example:
P00000000
<CR>
This command sets the prepaid amount to zero, and so turns off the prepaid
function. The Cost Counter will act in Standard Mode,
P00002000
<CR>
This command will set the prepaid amount to 2000 units. If we were working
in dollars, then this would represent $20.00. Because the command sets a
value of greater than zero into the prepaid field, the Cost Counter will work in
Prepaid Mode,
Begin Call/End Call:
The “B” command causes both the duration counter and the cost counter to begin
simultaneously. This is very helpful to “begin” a call or “end” a call, as both counters stop at
exactly the same time.
Format:
Bxyz
<CR>
B
= “B”
x
= Begin / End
1 = Begin
0 = End
y
= Optional command to control how the call is charged.
If this character is a “C” then the Cost Counter will also be
cleared. In Standard Cost Mode this means setting the Cost
Counter to zero. In Prepaid Cost Mode, this means presetting
the Cost Count to Prepaid amount.
If this character is a “S” then the cost counter will be
incremented/decremented by the cost “Amount” (see the “C”
command). In Prepaid Cost Mode, the “Amount” is immediately
subtracted from the Cost
Counter. In Standard Cost
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Mode, the “Amount” is immediately added to the Cost Counter.
Z
= Optional command to control the Duration Counter.
If this character exists and is an “R” then the duration counter
will be reset to zero.
Response:
^B
<CR>
The CallShop Fone Display will respond with this confirmation message
Example:
B1CR
<CR>
This will cause both the Duration Counter and the Cost Counter to begin
timing and pricing a call. The Duration counter will be reset to zero at the
start and the Cost Counter will be cleared. In Standard Cost Mode this means
setting the Cost Counter to zero. In Prepaid Cost Mode, this means presetting
the Cost Count to Prepaid amount.
B0
<CR>
This will cause both the duration counter and the cost counter to stop
counting.
B1S<CR>
This will cause both the duration counter and the cost counter to start
counting. Neither counter will be altered first, so that if there was a duration
on the Duration Counter, it will simply be added to. Likewise if a cost already
existed on the Cost Counter (from a previous call) then the counter will
simply add to this cost. This is usually used when you want to show the user
the total duration and cost of all his calls, and this command would be used to
start second or subsequent call.
View Digits Dialed:
The “V” command displays the “Digits Dialed” field on the LCD at the location of your
choice.
Format:
VRCC
<CR>
V
= “V”
R
= Row (1 for line 1 and 2 for line 2)
CC
= Column (01 to 16)
Response:
^V
<CR>
The CallShop Fone Display will respond with this confirmation message
Example:
V203
<CR>
Display the digits dialed field on line 2 starting at column 3 of the LCD
display.
V000
<CR>
Turn off the digits dialed field.
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Special Characters:
The “G” command allows creation of up to 8 special characters. These are characters that
do not exist as part of the standard ASCII character set. For instance, the dollar sign is ok if
you are working with dollars as this is a standard ASCII character, however if you are
working in Euro’s then the Euro symbol does not exist, so you need to create it your self.
The LCD display is made up of characters that are 8 dots high by 5 dots wide. For example:
Bit
4 3 2 1 0
Binary
Hex
FD Hex
01110
0x07
0x87
10001
0x11
0x91
10001
0x11
0x91
10001
0x11
0x91
11111
0x1F
0x9F
10001
0x11
0x91
10001
0x11
0x91
00000
0x00
0x80
You can see that the letter “A” is formed by dots. Each dot is either on (1) or off (0). The
“Binary” column is the binary value of the 0’s and 1’s required to form this character. The
“Hex” column is simply the hex version of this same value. The FD Hex column is simple the
Hex column with bit 7 always on (or if you prefer, in “C” terms, it is Hex | 0x80). To form
this character, you need to write 8 bytes of data 87; 91; 91; 91; 9F; 91; 91; 80.
To diagram below shows how you would form the Euro character.
Bit
4 3 2 1 0
Binary
Hex
FD Hex
00111
0x07
0x87
01000
0x08
0x88
11110
0x1E
0x9E
01000
0x08
0x88
11110
0x1E
0x9E
01000
0x08
0x88
00111
0x07
0x87
00000
0x00
0x80
To form this character, you need to write 8 bytes of data 87; 88; 9E; 88; 9E; 88; 87; 80.
The “G” command is used to send 8 special characters to the display memory. This equals
64 bytes of information.
Format:
Gabcdefgh
<CR>
G
= “G”
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a
= 8 characters representing special character #1.
b
= 8 characters representing special character #2.
c
= 8 characters representing special character #3.
d
= 8 characters representing special character #4.
e
= 8 characters representing special character #5.
f
= 8 characters representing special character #6.
g
= 8 characters representing special character #7.
h
= 8 characters representing special character #8.
Example:
The example below is “C” source code to send a group of special characters.
void SendSpecialCharacters( void )
{
// Define the array to hold the 64 bytes
char special_chars[ ] =
{
0x86, 0x89, 0x88, 0x9E, 0x88, 0x8D, 0x92, 0x80,
// £
0x87, 0x88, 0x9e, 0x88, 0x9e, 0x88, 0x87, 0x80,
// euro_image
0x9F, 0x91, 0x91, 0x91, 0x91, 0x91, 0x91, 0x80,
// pi_image
0x84, 0x8A, 0x8A, 0x91, 0x91, 0x91, 0x91, 0x80,
// lambda_image
0x9F, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x80,
// gamma_image
0x84, 0x8A, 0x8A, 0x91, 0x91, 0x91, 0x9F, 0x80,
// delta_image
0x8C, 0x92, 0x92, 0x96, 0x91, 0x99, 0x96, 0x90,
// ß
0x84, 0x8A, 0x80, 0x91, 0x91, 0x93, 0x8D, 0x80,
// û
};
char buf[ 66 ];
sprintf( buf, "G%s\r", special_chars );
WriteToFD( buf );
}
To use one of these characters in an LCD Message or as the Currency Symbol you replace
the standard ASCII character with the character 0x01 (‘\1’) to 0x08 (‘\8’).
For example to send the message, “Your total is £1234.56” you would send the message
with the following “C” string:
“Your total is \11234.56”
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State Messages :
The CallShop Fone Display provides certain messages to a PC control program to allow the
program to know the state of the device, and what the caller is doing. Each message is a
single ASCII character, followed by 1 or more parameters and ending with a
<CR>
.
Hook State:
The “H” message provides information about the change of state of the telephone hook
switch.
Format:
Hx
<CR>
H
= “H”
x
= State. 0 = On Hook; 1 = Off Hook
Example:
State of telephone
Message Sent
Phone goes off hook
H1
<CR>
Phone goes on hook
H0
<CR>
Digit Dialed:
The “D” message provides information about digits dialed by the user.
Format:
Dx<CR>
D
= “D”
x
= Digit dialed by the user.
Example:
State of telephone
Message Sent
User dials 3
D3
<CR>
User dials 6
D6
<CR>
By receiving the digits dialed by the user with these messages, and concatenating them
together, a PC program can easily determine the telephone number the user is dialing as he
is dialing it (in real time).
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Status Commands & Response Messages
The CallShop Fone Display is capable of providing a PC control program various status
information to allow the program to provide the required functionality.
Revision:
The “R” command sent to the device will cause it to respond with the revision number of the
devices firmware. This allows the program to first determine if the device exists and is
working and to also verify it is the correct version.
Command:
R
<CR>
Response Format:
xxxxxx
<CR>
x = 6 digit revision number
Example:
300110
<CR>
(Device is version 300110)
Status Hook Switch:
The “SH” command will return the current status of the hook switch. This can be useful if
the program needs to confirm it is in the correct state based upon the phone being on hook
or off hook.
Command:
SH
<CR>
Response Format:
Hx
<CR>
H
= “H”
x
= State. 0 = On Hook; 1 = Off Hook
Example:
H0
<CR>
(Device of On-Hook)
Status Time
The “ST” command will return the current clock date/time. This can be useful if the program
needs to confirm that the clock is correctly set.
Command:
ST
<CR>
Response Format:
TYYMMDDWhhmmss
<CR>
T
= “T”
YY
= Year
MM
= Month
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DD
= Day
W
= day of the week (Sunday is 1)
hh
= Hour
mm
= Minutes
ss
= Seconds
Example:
T0802263182346
<CR>
(Device clock is Feb 26 2008 at 18:23:46)
Status Duration
The “SD” command will return the status and current value of the Duration Counter. This
can be useful if the program needs to obtain the duration of a call.
Command:
SD
<CR>
Response Format:
DERCCdxxxxx
<CR>
D
= “D”
E
= Display Enabled; 0 = no, 1 = yes
R
= Row ( 1 or 2 )
CC
= Column ( 1 to 16 )
d
= Delimiter character
x
= 5 digit duration in seconds.
Example:
D1101:00123
<CR>
Duration Counter is displayed at row 1 column 1 with a delimiter character of
“:” and a value of 123 seconds.
Status Cost
The “SC” command will return the status and current value of the Cost Counter. This can be
useful if the program needs to obtain the cost of a call.
Command:
SC
<CR>
Response Format:
CERCCLDdSTTAAxxxxxxxx
<CR>
C
= “C”
R
= Row ( 1 or 2 )
CC
= Column ( 1 to 16 )
L
= Length of the field
D
= Decimal Places
d
= Delimiter character.
S
= Currency Symbol.
TT
= Time Period
AA
= Amount to Add or Subtract each time period.
x
= 8 Character field with the total cost of the call(s).
Example:
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C10882.$153000000234
<CR>
The Cost counter is being displayed at row 1, column 8, with a width of 8
characters, 2 decimal places with a decimal delimiter of “.” and a currency
symbol of “$”. The current cost setting is $0.30 every 15 seconds, and the
actual total cost of the call is 234, which in my example would be $2.34
Status Simple Cost
The “SS” command will return the value of the Duration and Cost counters to quickly obtain
the items required to bill the user for a call.
Command:
SS
<CR>
Response Format:
Sxxxxx:yyyyyyyy
<CR>
S
= “S”
x
= 5 digit duration field with the total duration of the call(s)
:
= “:”
y
= 8 digit cost field with the total cost of the calls(s)
Example:
S00123:00000234
<CR>
The duration is 123 seconds and the cost is 234 (in my example using dollars
this would be $2.34)
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Operational Examples:
To operate the device in the Standard Costing Mode, the following example illustrates the
commands and responses that would typically be sent to handle a call. Assume:
•
we will work in dollars with 2 decimal places to show dollars and cents.
•
Each command and response listed below ends in a
<CR>
. The example below has
omitted the
<CR>
for simplicity
Setup of CallShop Fone Display before user starts
PC to Fone
Display
Command
Fone Display to
PC Message or
Response
Description
l1
^l
Blank/Clear Line one of the LCD
l2
^l
Blank/Clear Line two of the LCD
T0802263182400
^T
Set the clock
t1
^t
Display clock on Line 1
M20307Ready..
^M
Display the word “Ready…” on line 2 of the LCD display
Caller places one call to 0113312345678 and a second call to 011441234567
PC to Fone
Display
Command
Fone Display to
PC Message or
Response
Description
H1
Phone goes off hook
t0
^t
Turn the clock display off
l1
^l
Blank/Clear Line one of the LCD
D101:C
^D
Display the Duration counter on line 1 at column 1 with a “:” delimiter
and also clear it. The counter would look like 000:00
C10982.$ 0000C
^C
Display the Cost Counter on Line 1 at Column 9. The counter will be 8
characters in length, with a “$” at the start and a “.” two characters
from the left. The cost is to be cleared. The field will look like:
$0000.00
At this point the first line of the LCD will be displaying:
000:00 $0000.00
D0
User Dials “0”; Destination Phone Number = “0”
D1
User Dials “1”; Destination Phone Number = “01”
D1
User Dials “1”; Destination Phone Number = “011”
D3
User Dials “3”; Destination Phone Number = “0113”
D3
User Dials “3”; Destination Phone Number = “01133”
C10982.$ 3060
^C
Set cost of this call to be $0.30 every 60 seconds
D1
User Dials “1”; Destination Phone Number = “011331”
D2
User Dials “2”; Destination Phone Number = “0113312”
D3
User Dials “3”; Destination Phone Number = “01133123”
D4
User Dials “4”; Destination Phone Number = “011331234”
D5
User Dials “5”; Destination Phone Number = “0113312345”
D6
User Dials “6”; Destination Phone Number = “01133123456”
D7
User Dials “7”; Destination Phone Number = “011221234567”
D8
User Dials “8”; Destination Phone Number = “0113312345678”
B1SR
^B
Begin the call. The cost counter will immediately add $0.30 to the total
and so will display $0000.30 and the Duration Count is reset to 000:00
H0
Caller hangs up after a period of time. The Duration Counter shows
001:31 (91 seconds) and the Cost Counter shows $0000.60
B0
^B
Stop call. Stops both Duration Counter and Cost counter.
H1
Phone goes off hook
D0
User Dials “0”; Destination Phone Number = “0”
D1
User Dials “1”; Destination Phone Number = “01”
D1
User Dials “1”; Destination Phone Number = “011”
D4
User Dials “4”; Destination Phone Number = “0114”
D4
User Dials “4”; Destination Phone Number = “01144
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C10982.$ 4560
^C
Set cost of this call to be $0.45 every 60 seconds
D1
User Dials “1”; Destination Phone Number = “011441”
D2
User Dials “2”; Destination Phone Number = “0114412”
D3
User Dials “3”; Destination Phone Number = “01144123”
D4
User Dials “4”; Destination Phone Number = “011441234”
D5
User Dials “5”; Destination Phone Number = “0114412345”
D6
User Dials “6”; Destination Phone Number = “01144123456”
D7
User Dials “7”; Destination Phone Number = “011441234567”
B1S
^B
Begin the call. The cost counter will immediately add $0.45 to the total
so the cost will now display $0001.05 and the Duration Count shows
001:31.
H0
Caller hangs up after a period of time. The Duration Counter shows
002:45 (145 seconds) and the Cost Counter shows $0001.50
B0
^B
Stop call. Stops both Duration Counter and Cost counter.
SS
S00145:00000150
The CallShop Fone Display reports a duration of 145 seconds and a cost
of 150 cents ($1.50).
l1
^l
Blank/Clear Line one of the LCD
l2
^l
Blank/Clear Line two of the LCD
T0802263182400
^T
Set the clock
t1
^t
Display clock on Line 1
M20307Ready..
^M
Display the word “Ready…” on line 2 of the LCD display
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Multiple CallShop Fone Display Installation
For most Call Shops, the requirement is for more than a single booth. To simplify the
installation, you can add a “
CallShop Concentrator
” to the system. This concentrator
provides a single serial connection to the PC, to allow the PC software to control multiple
CallShop Fone Display’s.
A complete Call Shop Solution overview diagram is shown here:
`
Dialtax PC
Cartridge 1
Cartridge 2
Cartridge 3
Cartridge 4
Line 1
Phone 1
Line 2
Line 3
Line 4
Line 5
Line 6
Line 7
Line 8
M-AXS
Serial Port #1
Phone 2
Phone 3
Phone 4
Phone 5
Phone 6
Phone 7
Phone 8
Concentrator
Serial Port # 2
Cable 1
Cable 2
Cable 3
Cable 4
Cable 5
Cable 6
Cable 8
Cable 7
$$$$$$$$
$$$$$$$$
$$$$$$$$
$$$$$$$$
$$$$$$$$
$$$$$$$$
$$$$$$$$
$$$$$$$$
Booth 1
Booth 2
Booth 3
Booth 4
Booth 5
Booth 6
Booth 7
Booth 8
Concentrator is 4 port, and can be linked
together to provide 8 port systems
Combines
* AC Power
* Phone connection and
* Serial data
into a single cable
FoneDisplay(s)
Serial
Link
4 Port
Concentrator
Serial
+
Phone Line
+
Power
4 Port
Concentrator
Serial
+
Phone Line
+
Power
FD Power Adapters
FD Power Adapters
AC Power Adapter
AC Power Adapter
The
CallShop Concentrator
brings together into one place:
a.
4 telephone lines
b.
4 Fone Display AC Power Adapters
c.
4 Serial Ports.
If more than 4 Fone Displays need to be supported, the CallShop Concentrator includes a
DownLink Serial port to connect the first Concentrator to a second Concentrator.
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Although this picture above looks quite complicated, it is actually very simple once you
understand it.
•
First, the CallShop Concentrator provides a single serial connection to the PC.
•
Second each Fone Display has only one cable connection from the phone booth,
back to the Concentrator. (for example, see Port 1 Cable in the picture above) This
cable includes
a.
Serial Communications
b.
AC Power
c.
Telephone Line
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The CallShop Concentrator has a 4 Line Telephone Jack. This jack adheres to the RJ61
standard. Use an 8 wire Telephone Style Cable (
NOT A RJ45 NETWORK PATCH CABLE
)
to connect the Concentrator Telephone Jack to a RJ61 Standard Jack. Then connect up to 4
phone lines according to the wiring below
RJ61 Standard
Pin
Number
Jack
Color
Function
Typical
Wire
Color
1
Blue
Fone Display 4 Tip
White/Brown
2
Orange
Fone Display 3 Tip
White/Green
3
Black
Fone Display 2 Tip
White/Orange
4
Red
Fone Display 1 Ring
Blue/White
5
Green
Fone Display 1 Tip
White/Blue
6
Yellow
Fone Display 2 Ring
Orange/White
7
Brown
Fone Display 3 Ring
Green/White
8
Grey
Fone Display 4 Ring
Brown/White
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The CallShop Concentrator has a total of 5 AC Adapter Jacks. The jacks labeled
Port Power
1 to 4 are used to provide AC power (via the Fone Display Port Cable) to each Fone Display.
The 5
th
AC Adapter Jack is for powering of the Concentrator itself.
The serial connection from the CallShop Concentrator to the PC is via a standard RJ45
network patch cable and an RJ45 to DB9 adapter. This
RJ45 to DB9 Adapter
may be
obtained directly from Telcom Research, or can be built from a generic adapter. The
connection information for making your own adapter is below:
Because the CallShop Concentrator is communicating with multiple Fone Display’s, the
single serial connection must be set much faster than the Fond Displays 2400 baud. The
correct settings for the Concentrator are:
9 Pin Concentrator Adapter
DB9
Male
or DB9
Female
DB9 Signal
Adapter
Color
Adapter
Pin
Number
1
DCD
-
N/C
2
RXD
Black
1
3
TXD
Yellow
4
4
DTR
5
5
GND
Red
6
6
DSR
White
N/C
7
RTS
-
N/C
8
CTS
Blue
N/C
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Baud Rate
19200
Data Bits
8
Stop Bits
1
Parity
None
The CallShop Concentrator handles buffering of data and baud rate conversion between the
PC at 19,200 BPS and the Fone Displays at 2400 BPS.
To expand the solution from 4 ports to 8 ports, simply obtain a 2
nd
CallShop Concentrator,
and (using a standard RJ45 Network Patch Cable) connect Concentrator 1’s Down Link Serial
Jack to Concentrator 2’s UpLink Jack. Concentrator 2 will automatically handle port numbers
from 5 to 10, instead of 1 to 4.
CallShop Concentrator Protocol:
Data commands and messages handled via the Concentrator are single strings of ASCII
text. Each message starts with the ASCII character ETX (0x03 or ‘\3’). This is followed by
the letter “P” and a 2 digit port number (01 to 99).
The format is as follows:
ETX
Pxxmm
<CR>
ETX
= ASCII Character ETX – 0x03 or ‘\3’
P
= “P”
xx
= Port Number of 01 to 99
mm
= Message to pass to the selected port
<CR>
= End of message character
For Example if you wish to send the message “Hello World” to the Fone Display on port 3,
you would send the following to the concentrator at 19200 baud:
ETX
P03M10311Hello World
<CR>
The Concentrator will take this message, strip off the “
ETX
P03” header and pass the
remainder of the message “M10311Hello World
<CR>”
to the Fone Display on port 3 at 2400
baud.
In response the Fone Display will send back to the Concentrator at 2400 baud the response:
^M
<CR>
The concentrator will add the string “
ETX
P03” to be front of this message as a header and
pass the result “
ETX
P03^M
<CR>
” to the computer at 19200 baud.
This simple header of
ETX
Pxx added to the front of all messages to and from the Fone
Displays allows the PC software to easily communicate with multiple Fone Displays using a
singe COM port.
The following is a “C” code example of how you might add this header to Fone Display
Messages.
void WriteToFDviaConcentrator( char * pFDMessage, int iPortNumber )
{
char buf[ 128 ];
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sprintf( buf, "\3P%02d%s", iPortNumber, pFDMessage, );
WritetoConcentrator( buf );
// Function to send data at 19200 baud
}