Timing Connections; Lan Connections - Cisco ONS 15454 Hardware Installation Manual

Timing Connections

52: Cisco ONS 15454 Backplane Pinouts (Release 3.4 or Later), on page 96
Backplane Pinouts, on page 97
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.
Note 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.
Table 12: BITS External Timing Pin Assignments
External Device
First external device
Second external device
Note
Refer to Telcordia SR-NWT-002224 for rules about provisioning timing references.

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
show alarm pin assignments.
Contact Tip and Ring
A3 (BITS 1 Out) Primary ring (–)
B3 (BITS 1 Out) Primary tip (+)
A4 (BITS 1 In) Secondary ring (–)
B4 (BITS 1 In) Secondary tip (+)
A1 (BITS 2 Out) Primary ring (–)
B1 (BITS 2 Out) Primary tip (+)
A2 (BITS 2 In) Secondary ring (–)
B2 (BITS 2 In) Secondary tip (+)
Installing the ONS 15454 M12 (ANSI and ETSI) Shelf
and Figure 53: ONS 15454 ANSI
Function
Output to external device
Output to external device
Input from external device
Input from external device
Output to external device
Output to external device
Input from external device
Input from external device