Dlp-G21 Install Timing Wires On The Mic-C/T/P (Etsi Only); Table 1-4 Mic-C/T/P Clock Connector Pin Assignment - Cisco ONS 15454 DWDM Installation And Operation Manual

Chapter 1 Install the Shelf and Common Control Cards

DLP-G21 Install Timing Wires on the MIC-C/T/P (ETSI Only)

Purpose
Tools/Equipment
Prerequisite Procedures
Required/As Needed
Onsite/Remote
Security Level
Step 1 Using coaxial cable with 1.0/2.3 miniature coax connectors, connect the clock cable to the appropriate
connector on the faceplate of the MIC-C/T/P.
Step 2 Gently push the cable with the 1.0/2.3 miniature coax connector down until the cable connector slides
into the 1.0/2.3 miniature coax connector on the faceplate with a click.
The MIC-C/T/P provides 1.0/2.3 miniature coax connectors that are used for timing input and output.
The top connectors are for "A" (BITS-1) timing, and the bottom connectors are for "B" (BITS-2) timing.
In each case, the left connector is the input and the right connector is the output. The input connectors
for timing provide a 75-ohm termination. System cables are available that can convert timing clocks
from 75 ohms to 100/120 ohms.
Table 1-4
Pin
IN 1
OUT 1
IN 2
OUT 2
A high-impedance option (> 3 kilo-ohms or greater) is possible through a jumper on the MIC-C/T/P
FMEC. You can change the top timing input to high impedance by removing the jumper on P3 of the
MIC-C/T/P FMEC. You can change the bottom timing input to high impedance by removing the jumper
on P2 on the MIC-C/T/P FMEC.
Note
Connect the other end of the cable to the external source of the timing signal according to
Step 3
Repeat
Step 4
Return to your originating procedure (NTP).
Step 5
September 2004
This task installs the timing cables on the ONS 15454 ETSI MIC-C/T/P.
75-ohm coaxial cable with a 1.0/2.3 miniature coax connector on the
MIC-C/T/P side
NTP-G6 Install the MIC-A/P and MIC-T/C/P FMECs (ETSI Only), page
1-27
As needed
Onsite
None
Table 1-4
MIC-C/T/P Clock Connector Pin Assignment
Function
Input from external device
Output to external device
Input from external device
Output to external device
Refer to ITU-T G.813 for rules about provisioning timing references.
Step 3 for each cable that is required.
DLP- G21 Install Timing Wires on the MIC-C/T/P (ETSI Only)
shows MIC-C/T/P pin assignments.
Cisco ONS 15454 DWDM Installation and Operations Guide, R4.7
Table 1-4.
1-51