52: Cisco ONS 15454 Backplane Pinouts (Release 3.4 or Later), on page 96
and
show alarm pin assignments.
Visual and audible alarms are typically wired to trigger an alarm light or bell at a central alarm collection
point when the corresponding contacts are closed. You can use the ACO pins to activate a remote ACO for
audible alarms. You can also activate the ACO function by pressing the ACO button on the TCC2/TCC2P/TCC3
card faceplate. The ACO function clears all audible alarm indications. After clearing the audible alarm
indication, the alarm is still present and viewable in the Alarms tab in CTC.
Timing Connections
The ONS 15454 ANSI backplane supports two building integrated timing supply (BITS) clock pin fields. The
first four BITS pins, rows 3 and 4, support output and input from the first external timing device. The last
four BITS pins, rows 1 and 2, perform the identical functions for the second external timing device. The
following table lists the pin assignments for the BITS timing pin fields.
For timing connection, use 100-ohm shielded BITS clock cable pair #22 or #24 AWG (0.51 mm² [0.020 inch]
or 0.64 mm² [0.0252 inch]), twisted-pair T1-type.
Note
Table 12: BITS External Timing Pin Assignments
Function
Tip and Ring
Contact
External Device
Output to external device
Primary ring (–)
A3 (BITS 1 Out)
First external device
Output to external device
Primary tip (+)
B3 (BITS 1 Out)
Input from external device
Secondary ring (–)
A4 (BITS 1 In)
Input from external device
Secondary tip (+)
B4 (BITS 1 In)
Output to external device
Primary ring (–)
A1 (BITS 2 Out)
Second external device
Output to external device
Primary tip (+)
B1 (BITS 2 Out)
Input from external device
Secondary ring (–)
A2 (BITS 2 In)
Input from external device
Secondary tip (+)
B2 (BITS 2 In)
Refer to Telcordia SR-NWT-002224 for rules about provisioning timing references.
Note
LAN Connections
Use the LAN pins on the ONS 15454 ANSI backplane to connect the ONS 15454 ANSI to a workstation or
Ethernet LAN, or to a LAN modem for remote access to the node. You can also use the LAN port on the
TCC2/TCC2P/TCC3 faceplate to connect a workstation or to connect the ONS 15454 ANSI to the network.
The following table shows the LAN pin assignments.
Cisco ONS 15454 Hardware Installation Guide
98
Installing the ONS 15454 M12 (ANSI and ETSI) Shelf
Timing Connections
Summary of Contents for ONS 15454
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