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November 18, 2005
O
C
PERATIONAL
APABILITIES
Application
With two HMU-319 management units installed, the HRM-238 shelf provides network management for up to 56
HiGain line units.
Recommended Network Setup for 220-Type Shelves
The configuration shown in
220-type shelves can be managed with one HRM-238 shelf. Position the HRM-238 shelf between the 220-type
shelves, with up to two 220-type shelves above and two below. This limits the distance for the wire leads between
the connectors for the management units and the line units they manage.
the rear view with the A-side connectors on the right and the B-side connectors on the left. The leads from the
HRM-238 shelf connector attach to the Network Management Agent (NMA) pins on the rear of the 220-type
mechanics shelves for each line unit managed. The NMA pin on a 220-type chassis is pin 46.
Figure 1-3. Recommended Network Setup for 220-Type Shelves
LTPH-UM-1315-01
Figure 1-3
is the recommended setup for 220-type mechanics shelves. Up to four
NMA 1 to 14 A
(pin 46 of
each slot)
NMA 15 to 28 A
(pin 46 of
each slot)
NMA 1 to 14 B
(pin 46 of
each slot)
NMA 15 to 28 B
(pin 46 of
each slot)
CO -48V
Supply
NMA 1 to 28 B
Network B
Figure 1-3
-48V A
HCS-417/418
(220-type shelf)
-48V B
-48V A
HCS-417/418
(220-type shelf)
-48V B
-48V A
HCS-417/418
(220-type shelf)
-48V B
-48V A
HCS-417/418
(220-type shelf)
-48V B
TB1
HRM Shelf
Network A
Chapter 1: Overview
shows the HRM-238 shelf from
NMA 1 to 28 A
H0544-B
1-3
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