1-57
Cisco ONS 15454 DWDM Procedure Guide, R8.0
78-17704-02
Chapter 1 Install the Shelf and Common Control Cards
NTP- G24 Install Timing Wires on the Backplane (ANSI Only)
Figure 1-25
Highlighted Environmental Alarms
Step 2
Return to your originating procedure (NTP).
DLP-G24 Install Timing Wires on the Backplane (ANSI Only)
Step 1
Using 100-ohm shielded BITS clock cable #22 or #24 AWG (0.51 mm² or 0.64 mm²), twisted-pair
T1-type, wrap the clock wires on the appropriate wire-wrap pins according to local site practice.
Ground the shield of the BITS input cable at the BITS end. For BITS output, wrap the ground shield of
the BITS cable to the frame ground pin (FG1) located beneath the column of BITS pins.
lists
the pin assignments for the BITS timing pin fields.
Purpose
This task installs the BITS timing wires on the ONS 15454 ANSI
backplane.
Tools/Equipment
Wire wrapper
100-ohm shielded BITS clock cable pair #22 or #24 AWG (0.51 mm² or
0.64 mm²), twisted-pair T1-type
Prerequisite Procedures
NTP-G5 Remove the Backplane Covers (ANSI Only), page 1-28
Required/As Needed
As needed
Onsite/Remote
Onsite
Security Level
None
1
2
3
4
A
FG4
FG3
FG2
FG1
BITS
LAN
1
2
3
4
A
B
1
2
3
4
A
B
IN
1
2
3
4
A
B
IN/OUT
FG6
FG5
7
8
9
5
10
6
A
B
A
B
ENVIRONMENTAL ALARMS
IN
ACO
FG7
1
2
3
4
IN
A
B
FG8
1
2
3
4
A
B
MODEM
FG9
1
2
3
4
A
CRAFT
AUD
VIS
FG10
1
2
3
4
A
B
LOCAL ALARMS
IN
FG12
FG11
11
12
A
B
B
83020
Table 1-6
External Timing Pin Assignments for BITS
BITS Pin
Tip/Ring
CTC/TL1 Name Function
A4
ring
BITS-1
Input from BITS device 1
B4
tip
BITS-1
Input from BITS device 1
A3
ring
BITS-1
Output to external device 1
B3
tip
BITS-1
Output to external device 1
A2
ring
BITS-2
Input from BITS device 2
B2
tip
BITS-2
Input from BITS device 2
A1
ring
BITS-2
Output to external device 2
B1
tip
BITS-2
Output to external device 2
