Office Alarm Cable Installation - Alcatel-Lucent 1665 Installation Manual

Cable and fiber installation
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Table 3-21 Synchronization cable (DS1 timing reference) connections
Conn.
Sync1 (J9)/
Sync2 (J14)

Office alarm cable installation

Description
Office alarms are the common method used in a central office for maintenance personnel
to quickly isolate a failure. Perform this procedure if connection to the office alarm system
is required.
Note:
capable of switching 1 amp at 50 volts, or 2 amps at 25 volts. Their ability to switch
large transient currents means that they can, if necessary, switch up to ten 5-watt aisle
pilot lamps.
If transient voltages or currents are above these limits, transient noise-suppressing devices
such as diodes or contact protection networks must be used to keep within the voltage and
current limits. If these protection devices are not sufficient, an external buffer relay MUST
be provided.
In all cases, and as a matter of good practice, suppression devices such as diodes or contact
protection networks must be provided across any external relay coil being driven by the
Alcatel-Lucent 1665 DMX high-capacity shelf to limit transient voltages and currents.
Office alarm cable assemblies are listed in
(p. 3-56).
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Alcatel-Lucent 1665 DMX R9.0
365-372-304R9.0 Issue 2
July 2010
Jacket Color
Red BL
W
Gray BL
W
Drain
The office alarm relay contacts are rated at 50 VA which means that they are
9-Pin Special
conn. conn. Designation
1 Rx1 RGO1/RGO2
6 Tx1 TPO1/TPO2
2 Rx2 RGI1/RGI2
7 Tx2 TPI1/TPI2
5 GND GRD
Table 3-22, "Office alarm cable assemblies"
Office alarm cable installation
Name
Sync Output
Sync Input
3 - 5 1