Lucent Technologies SLC ConnectReach User & Service Manual page 307

Installation
Alarm Relay
Alarm Relay
Improper Function
Four conditions
FXO card
The SLC ConnectReach system supports an alarm relay that indicates when the
unit is not functioning properly and one or more of the yellow or red status LEDs
are illuminated. The alarm contacts are assigned to pins 25 and 50 of the VOICE
CHANNELS connector. For information about the VOICE CHANNELS connector
pin assignments, refer to Chapter 2, "Product Description" The alarm contacts
may be connected to an external alarm or a trunk bypass unit. Refer to the
description of peripheral equipment located in Chapter 2, "Product Description",
for more information. One of the following four conditions will cause the alarm
relay to close.
a. Power fails.
b. SLC ConnectReach system fails.
c. Network T1/DSX-1 alarm is enabled and the network
T1/DSX-1 link fails.
d. Secondary/fractional T1/DSX-1 alarm is enabled and the
secondary/fractional T1/DSX-1 link fails.
Disable the network T1/DSX-1 alarm when the SLC ConnectReach system has
an FXO card used with LCR and a trunk bypass unit is connected. If the
T1 link fails, calls will automatically be rerouted out the FXO port, which is
connected to the trunk bypass. If the network T1/DSX-1 alarm is enabled, calls
will be rerouted out the FXS port and within the bypass unit causing connection
problems.
363-208-050
Issue 4 June 2002 5-55