Paradyne 8820 Installation Manual page 19

1. Introduction
Major/Minor Alarm Contacts for CO Alarm Requirements
The BAC provides two sets of dry contacts via the System Interface Module
(SIM), accessible through an 8-pin modular jack, for connection to a CO alarm
system.
LED Indicators for Power and Fan Status and Major and Minor Alarms
Five LEDs on the front panel of the BAC indicate the status of important
functions (see LEDs in Chapter 6, Troubleshooting).
Hot-Swappable Cards
The MCP, backup SCP card, and line cards can be installed and removed from
the chassis without service disruption to other cards. However, installing or
removing an active SCP or SCM card will affect service to all cards using the
uplink.
ATM Uplink
The ATM uplink provides various network services, applications, and protocols
(including DS3, OC3, E3, DS1 IMA, and E1 IMA) over a common ATM
transport and switching system.
Network Equipment-Building System (NEBS)
The BAC is NEBS certified.
1-5
8820-A2-GN20-80 November 2004