363-206-305
Circuit Pack Descriptions
7-26
Issue 3 June 2000
Power Circuitry
7
The OLIU circuit packs supply +5 V power to the DS1PM circuit packs. These
inputs are diode ORed and the output is fused and then filtered before it is used to
power the rest of the circuit pack. A failure of the fuse causes the red FAULT LED
to light.
DS1PM Hardware Settings
7
The line coding and line build out (LBO) are switch settable. Other parameters are
provisionable through the software. The locations of the DS1PM circuit pack
option switches are shown in Figure 7-11 and Tables 7-3 and 7-4.
Note
: The switches are set by moving the slide toward the desired position.
Figure 7-11. BBF3 DS1PM Option Switches
Connector
Edge
8765
Component Side
S1
OFF
ON
4321
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