CANOGA PERKINS 2361 T1 Modem - Manual (Page 10)

The EdgeAccess Universal Chassis System
2361 Modem Users Manual 1-2
1.1 Product Description
The 2361 modem contains three main components:
• Main Module The modem's main module consists of CPU modem management hardware,
I/O control and memory, a custom composite XL Mux/Demux device (gate array), Loopback
Support Circuitry, Message Bus, Redundancy Interface Units, and Front Panel Indicators and
Switches.
• Electrical Line Interface Module (ELIM): An I/O Module available in a variety of
electrical interfaces. It provides isolation between the modem main module and the attached
metallic cable interface and transforms differential signals to bipolar line drive signals.
• Optical Line Interface Module (OLIM): An I/O module available in a variety of optic
wavelength interfaces. The optical link will carry data from both the network equipment (i.e.,
payload) and the network management processor (IMDL). Data is transmitted from the main
modem board, routed to the OLIM's driver circuitry, which in turn, drives the optical
transmitter.
The received data from the optical receiver will be amplified and then restored to TTL logic
levels before being delivered to the modem board.
All three components are hot-swappable, meaning that a module can be replaced without resetting
the entire unit.
1.1.1 Management
Configuration and management is accomplished via a local terminal. Modems can be managed in
the following ways:
• Local terminal directly connected to the modem's serial port in VT100 mode
• Local terminal connected through the Universal Chassis System's Domain Management
Module (DMM)
• SNMP, through the UCS Domain Management Module
• SNMP, utilizing optional TCP/IP access via the modem's serial port (standalone only)
In each case, menu driven, user friendly screens provide end-to-end configuration, status, and
control of the link, including remote and redundant modems.
SNMP management, via DMM: Provides a Network Manager with all data, via Intranet or
local PC management system.
DMM: Provides management data on all modems and other modules in the Universal Chassis
System, including remote modems.
VT100 Terminal Access: Provides access to all individual modem software screens, and their
remote partners.
SNMP management & telnet, over SLIP/PPP port: Available as an option in the standalone
units.