Product manual

Appendix F: General Troubleshooting Guide
126 025-9158L
is the Master, verify that its address via the rear dip switches are set
to “1”. If this Model 26 is a Slave, verify the Multiple Model 26
Chain connection on the rear of the Model 26(s) is good. This
indication may also occur if the Model 26 is programmed to
recognize secondary Model 6s but they have not been installed yet.
Problem:
When attempting to program Model 26 or Model 6, unable to get the
Main Menu to display on PC.
Solution:
Verify cable pin-outs. Zetron provides a cable (Part No. 709-7208)
with the Model 26. Verify communications parameters are set
correctly (9600, N, 8, 1, No Handshake/Flow Control) within the
dumb terminal program (ProComm, HyperTerminal, etc.). Verify dip
switch settings. On the rear of the Model 26 move the dip switches 6
and 7 to “ON”. Inside the Model 6, move dip switches SW1-7 and 1-
8 “ON”. It takes three space bars to bring up the Main Menu.
If a newer Model 6 or Model 26 is being programmed, jumper JP13
(Model 6) or jumper JP12 (Model 26) should be in the “B” position
to configure the programming port for the above pin out. In the “A”
position, a standard, null modem cable should work.
Problem:
With the Model 26 interfaced to a Radio Console, Dispatcher hears
data packets over the Console, and when Dispatcher attempts to issue
PA announcement from the Console, the Model 26 indicates the
stations’ PA(s) have prematurely shut down.
Solution:
Along with paralleling audio of a dedicated channel from the radio
console, there are two control lines from the Model 26 that may need
to be also connected. The “XBUSY+” input connection on the rear
of the Model 26 can be used to prevent the Model 26 from shutting
down the PA(s) while the Dispatcher is trying to give a voice
announcement. This pin would tie to an equivalent “cross busy
output” from the Console. Another connection, “Data Mute” output,
can be used to mute the Console when data packets are being passed
between the Model 26 and Model 6. This output would need to be
connected to a “cross busy input” on the Console. These connections
depend on what type of Console is being used.