RFL 9300 RFL Electronics Inc.
October 20, 2004 7 - 6 (973) 334-3100
7. Verify the RFL 9300's local alarm output by removing the G controller module.
The red SYS indicator on the 93B SV LED will light. The display will read "ALARM 63 34"
and the beeper will sound. The contacts between rear-panel terminals TB8-1 and TB8-3
will close; this can be verified with an ohmmeter.
8. Push the G controller module back into the chassis.
The relay will return to normal operation; the red SYS indicator will go out, the display
will change back to the moving dots, and the beeper will stop.
9. Verify the communications alarm functions by turning off the power at the remote relay or by discon-
necting the incoming communications link.
The red TX/RX indicator on the 93B SV module will light, the display will read "ALARM
46," and the beeper will sound. The BACKUP indicator on the 93B DISPLAY module will
light, showing that the backup functions are active. The communications alarm output
relay will operate, and the contacts between rear-panel terminals TB8-4 and TB8-6 will
close; this can be verified with an ohmmeter.
There will be a 5-second delay in the operation of the alarm output relay. This is be-
cause the communications alarm delay (Parameter #41) has been set to ENABLE.
When testing an RFL 9300 equipped with a modem module, both
wires in the twisted pair
must be disconnected. If one wire is left connected, a longer recovery time may be re-
quired to restore communications. This is because disconnecting a single wire inter-
rupts the communications path in both directions, but inter-wire coupling keeps a small
signal present in both directions. This signal confuses the modem, and results in the
longer recovery time.
10. Restore the incoming communications signal.
The local relay will return to normal operation. The red TX/RX and BACKUP indica-
tors will go out, the display will change back to the moving dots, and the beeper will
stop.
11. At the present time the local RFL 9300 transmit address is set to “4000” and the remote RFL 9300
transmit address is set to “0095”. These addresses are compatible since their sum equals 4095.
Verify the operation of the transmit address alarm by setting the transmit address of
the local RFL 9300 to “4001”. This will make the transmit addresses of the local and
remote RFL 9300s incompatible.
The displays will read “ALARM 46” and “ALARM 16”, and the beeper will sound.
12. Restore the correct address by setting the local RFL 9300 transmit address back to “4000”.
The local and remote RFL 9300s will return to normal operation; the alarms will go out,
the displays will change back to the moving dots, and the beeper will stop.
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