1-16
Cisco ONS 15327 User Documentation, R3.3
June 2002
Chapter 1 Hardware Installation
Card Installation and Turn-Up
Note
Refer to Telcordia SR-NWT-002224 for rules about how to provision timing references
1.8 Card Installation and Turn-Up
Caution
Always use the supplied ESD wristband when working with a powered ONS 15327. Plug the wristband
cable into the ESD jack located between the top high-speed and XTC slots.
ONS 15327 cards have electrical plugs at the back that plug into electrical connectors on the shelf
assembly backplane. When the ejectors are fully closed, the card plugs into the assembly backplane.
shows XTC card installation (which is the same as MIC installation) and
shows
high-speed card installation.
Warning
The optical cards for the ONS 15327 are Class 1 laser products. These products have been tested and
comply with Class 1 limits.
Warning
During this procedure, wear grounding wrist straps to avoid ESD damage to the card. Do not directly
touch the backplane with your hand or any metal tool to avoid the risk of shock.
Note
DS-1 and DS-3 interfaces are not intended for direct connection to the network. These interfaces should
be connected to the network via a CSU/DSU that has the proper certification.
1.8.1 Slot Requirements
The ONS 15327 shelf assembly has eight card slots; four high speed slots, two Cross-Connect, Timing
and Control (XTC) slots, and two Mechanical Interface Card (MIC) slots. The wider slots host the XTC
cards and MICs. The narrower, high-speed slots host Ethernet, OC-3, OC-12, and OC-48 cards.
Second external
device
(MIC B)
BITS 2 Out
7
Primary ring (-)
Output to external
device
BITS 2 Out
8
Primary tip (+)
Output to external
device
BITS 2 In
3
Secondary ring
(-)
Input from external
device
BITS 2 In
4
Secondary tip
(+)
Input from external
device
Table 1-2
External Timing Pin Assignments for BITS (continued)
External Device
Contact
RJ-45 Pin
Tip & Ring
Function
Summary of Contents for ONS 15327
Page 22: ...Contents xxii Cisco ONS 15327 User Documentation June 2002 I N D E X ...
Page 30: ...Figures xxviii Cisco ONS 15327 User Documentation June 2002 ...
Page 44: ...Procedures xlii Cisco ONS 15454 Installation and Operations Guide R3 2 June 2002 ...
Page 540: ...Glossary GL 16 Cisco ONS 15327 User Documentation R3 3 June 2002 ...