Figure 3-4 – Cisco ONS 15200 User Manual

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Cisco ONS 15200 Product Description

78-13766-01

Chapter 3 Product Hardware

Physical Layout

Figure 3-4

Configuration of the ONS 15252 Multichannel Unit

The lower portion of the ONS 15252 MCU is referred to as the passive optical shelf. The passive optical
shelf has an A side and B side. The A side of the ONS 15252 MCU is located on the left side of the
passive optical shelf, as seen from the front. The A-side LM contains one line IN port (FC), one line
OUT port (FC), and two line-monitoring ports (SC). The line-monitoring ports make it possible to
monitor the A-side incoming and outgoing DWDM optical signals.

The B side of the ONS 15252 MCU is located on the right side of the passive optical shelf, as seen from
the front. The B-side LM contains one line IN port (FC), one line OUT port (FC), and two
line-monitoring ports (SC). The line-monitoring ports make it possible to monitor the B-side incoming
and outgoing DWDM optical signals. The passive optical shelf also contains the A-side and B-side
HFMs and TMs, BMs, CMXs, or CMYs in various combinations.

Figure 3-5

shows the typical

arrangement of the modules.

NCB - Network Controller Board

CLIP - Client Line Interface Port

NAM - Network Adaptation Module

CIM - Communications Interface Module

LM - Line Module

HFM - Hub Filter Module

DFM - Dummy Filter Module

BM - Bridge Module

B - Side

A - Side

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