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Chapter 5
Network Adaptation Module
Figure 5-2
A B
NEBS - 3 compliant
Table 5-1
LED
Green
Yellow
Red
A and B
A and S
5.1.2 NAM Configuration
A CLIP module is mounted directly above the NAM. Two (unprotected) or three (protected) fibers come
from the NAM to the CLIP module front panel. The receiver fibers are labeled A and B.
Four DWDM-side fibers come from a protected NAM (two DWDM-side fibers from an unprotected
NAM). These fibers are separated into two groups, labeled A and B. Each group includes one optical
fiber connector (type MU) from the transmitter and one from a receiver, mounted in a duplex MU
connector.
The duplex MU connector contains two fibers labeled A or B. The transmitting fibers include a label to
indicate the coupling ratio (10, 50, or 90). This label helps you connect the fibers correctly to each Hub
Filter module (HFM).
An unprotected NAM does not include an optical coupler. It has only two patch cords, one for the
receiver and one for the transmitter. For unprotected CLIP modules, use the receiver labeled A for the
received optical signal.
Figure 5-4 on page 5-4
78-13767-01
NAM front panel
A
S
NAM Indicators
Orientation
In line
Horizontal (2x2 pattern)
Vertical
Figure 5-3
is a block diagram of the NAM used in unprotected configurations.
Condition (When Lit)
DC power to CLIP module
Minor alarm or warning
Critical or major alarm
Indicate dense wavelength division multiplexing (DWDM)
side of the system
Indicate active (A) and standby (S)—the active side carries
live traffic and the standby side provides a fail-over path
is a block diagram of the NAM used in protected configurations.
Functional Description
Cisco ONS 15200 Module Handbook
5-3
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