Verilink QPRI 2921 (880-503143-001) Product Manual - Manual (Page 14)

QPRI 2921 Dual-Port ISDN Primary Rate Interface
1-4 Verilink QPRI 2921
LEDs The QPRI front panel’s System LED (SYS) is green when the module
has passed the power-up self-test.
The panel also contains four status LEDs:
•
Two for network port status
•
Two for data port status
Chapter 4 of this manual defines the LEDs and alarms.
Management Ports Three NCM front panel management ports support management of
the local node and allow remote node management.
•
Local—RJ-11 direct connection to the Craft interface via:
•
An ASCII terminal
•
A PC running a terminal emulator
•
Node Manager ASCII Port Access window
The QPRI 2921 also supports access to the ASCII interface over NCM
Telnet sessions via modem dial-up SLIP connections.
•
PRI—Primary Management. Node Manager interface connection
to the PC COM port.
Type Serial port used for Node Manager access or
ACP bus extension
Connector RJ-45 (8-pin), RS-232-compliant
•
EXT— Multishelf Management. Extension port for daisy-
chaining multiple AS2000 shelves (ACP-bus modules only).
Type ACP management ext ension port
Connector RJ-45 (8-pin), RS-232-compliant
The PRI and EXT ports can be used interchangeably.
Connector
Interface
Modules
In addition to the all-net, all-equipment, or 2-net/2-equipment port
configurations (RJ-48C), the CIMs also provide the following
interfaces:
•
Alarm relay
Loss of carrier conditions activate the relay contacts. These
contacts can be wired to external alarm equipment. The
connector pins provide output as a normally open (NO)
contact, a normally closed (NC) contact, and a common (COM)
lead contact.
•
External timing source input
The 8-pin mini-DIN connector receives a clock signal from an
external timing device.