Specifications

Page 7–4
FOCUS System Manual
• Set the DS0 channel assignments for the chassis’ channel modules
Interfaces RS-232 (Front panel PC Interface)
RJ-9
Connectors RJ-9 jack
DB9 female (Front Panel RS-232)
DB9 female (Rear Panel, special configuration)
Processor Intel 80C188
Storage NOVRAM with a lithium battery for backup power for storing system
configuration, settings, and real time clock
Event Buffers hold up to 1000 events**
Functions Defines system configuration
Performs self testing diagnostics
Recognizes and isolates failed modules
Interfaces to PC and FCS to configure and test the system
Provides party line order wire (PLOW) voice channel with signaling
Sequence of events log of 55 events (MV2), 1000 events (MV3)
Indicators Status LED System armed (APM)
TX data to FCS Channels flipped (APM)
RX data from FCS Chassis locked/unlocked
Synchronizing direction Remote user logged in
RX alert for digital phone TX alert for digital phone
Slave/Master status PLOW break (E1)
Superframe synchronization enabled/disabled
Framer Use T1 Module
Minor Alarm Carrier Failure (low signal) Channel Module Failure
Redundant PS failure Expansion Chassis Fail
Novram Battery Failed DS0 Loopback Present**
PRI Redundant Path Fail** PRI Installed w/unsupported rev.
No Transceivers installed
Major Alarm Out of sync Both power supplies bad
T1 stream in loopback Transciever with bad status
Low voltage on internal dc level (XCVR pulled from locked chassis)
Table 7–1. Maintenance Module (MV2, MV3) Specifications.
**Excludes MV2