EZ Call a Matic User Manual - page 31
After the PMS formats are defined, the following screens appear :
ACK/NAK handshake :
required
(default)
not required
If the “ACK/NAK not required” option is selected, the next 2 screens will be skipped and the
program would go to “Printer set up” screen.
If rejected by PMS :
Buffer calls and post when PMS ready
print error message
If ACK/NAK protocol has not been selected, this screen will not appear
Enter ENQ/STX/ETX/ACK/NAK characters (ex. 05 02 03 06 15) :
The above are the normal hex values for the handshake characters. In the unlikely event that a
PMS uses some other values, these may be modified to match the host PMS.
PMS printer set up
:
Serial = PMS, no parallel printer (default)
Serial = PMS, all non-pms data on parallel printer
Serial = PMS, all data on parallel printer
Serial = PMS, all data + pms debug data on parallel printer
While defining the Printer set up under the PMS program, it is assumed that the user would want
only the PMS data to go out on the PMS port. Among the available options, the first one allows the
user to disable the parallel printer port on the Call-A-Matic.
The second option sends all the data except the PMS record itself to the parallel printer.
The third option sends even the PMS record to the parallel printer. This is a troubleshooting aid, to
be used when the host PMS is rejecting the records sent out by the Call-A-Matic. When this option
is selected, the actual record sent to the host PMS is also sent out to the parallel printer. If, even
with this option, it is not possible to find the reason for the records being rejected by the PMS,
select the fourth option.
In the fourth option, in addition to the printable data, a description of each of the handshake
characters & control characters is also sent out to the parallel printer. For example, it could be as
given below –
ENQ
=>
(Call-A-Matic sends ENQ to PMS)
(PMS sends back NAK)
ENQ
=>
(Call-A-Matic sends ENQ to PMS)
(PMS sends back NAK)
ENQ
=>
(Call-A-Matic sends ENQ to PMS)
(PMS sends back ACK)
STX
=>
(Call-A-Matic sends STX to PMS)
PMS RECORD
(Call-A-Matic sends data record to PMS)
ETX
=>
(Call-A-Matic sends ETX to PMS)
BCC
=>
(Call-A-Matic sends BCC to PMS)
CR
=>
(Call-A-Matic sends CR to PMS)
LF
=>
(Call-A-Matic sends LF to PMS)
NAK
(PMS sends back NAK)
In case the PMS does not respond at all, you will only find three successive ENQs being sent by the
Call-A-Matic to the PMS.
CallAMatic