Verilink QUAD T1 (880-503345-001) Product Manual User Manual
Page 12
Overview
1-4
Verilink QUAD T1 User Manual
Power-Up Sequence
During initialization the QUAD T1 LEDs blink as a self-test is
conducted. Initially all five LEDs blink green to red rapidly. At the
completion of the self-test the SYS LED will remain amber briefly as
the SCM takes over the management functions. The final state of
the Port LEDs will reflect the conditions listed above.
PRI Port
The PRI RJ-45 port can be used to connect a QUAD T1 module
directly to a PC running Node Manager software.
Rear Modules
The QUAD T1 module is used with one of three Connector Interface
Modules (CIMs), depending on the required mix of DS-1 and DSX-1
interface types. Each of the available CIMs presents four RJ-48 8-
pin modular connectors for the T1 connections.
DS-1 or DSX-1
CSU network interfaces present a DS-1 interface, with line buildout
options which can be used to reduce the transmit signal level if a
repeater is nearby.
T1 equipment, and the equipment interface of a T1 CSU, typically
present a DSX-1 interface which offers the ability to increase signal
level in order to drive a long cable between the equipment and the
CSU.
CIM Types
The three types of CIM available with the QUAD T1 module are
described in
and illustrated in
Table 1-3 QUAD T1 CIM Types
Alarm Relay
Connector
Each of the CIMs used with the QUAD T1 module has a connector
for use with an external alarm system. In some large data centers
and telco facilities, an audible or visible alarm system is used to
alert technicians to a problem. Relays on the QUAD T1 module are
used to either break or make a connection, triggering this alarm
system.
To trigger an alarm by a relay closure, use the NO (Normally Open)
and COM (Common) connectors. If the alarm system triggers by a
break in a circuit, use (NC) Normally Closed and COM. The relay
contacts meet Form C specifications and are rated at 0.4A @ 125
VAC or 2A @ 30 VDC. The relay is designed for non-inductive loads.
See
AS3000: The Basics
for more information on alarm relays.
CIM Type
Number of DS-1 Ports
Number of DSX-1 Ports
CIM 3003
2
2
CIM 3064
4
0
CIM 3068
0
4