Cisco 3521, Руководство администратора

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Administrator’s Guide for Cisco IPVC 3521 BRI Gateway, Cisco IPVC 3526 PRI Gateway, and Cisco IPVC 3540 PRI Gateway
OL-7995-01
Chapter 1 Overview of the Cisco IPVC 3500 Series Gateway
About Cisco IPVC 3500 Series Gateway Products
Caution Do not attempt to install or remove a Cisco IPVC 3540 PRI Gateway module from the chassis top slot
while power is applied to the chassis.
Caution When installing a Cisco IPVC 3540 PRI Gateway module while power is applied to the chassis, install
the RTM before installing the Cisco IPVC 3540 PRI Gateway module.
The Cisco IPVC 3540 PRI Gateway module is capable of providing system functionality for the
Cisco IPVC 3544 chassis. To use the gateway module for system functions, you must install the gateway
module in the top slot in the chassis front, and you must replace the current RTM in the top slot in the
rear of the chassis with the gateway RTM.
Note A module must be installed in the top slot of the chassis to perform the system functions.
LED
•
GK Reg—This LED lights up on when the
gateway has an active registration with the
gatekeeper.
• CD—The carrier direct (CD) LED lights green
when all of the enabled PRI lines are connected
and functioning. When one of the enabled PRI
line is not connected or malfunctioning, the CD
LED is off.
•
Alarm—This LED indicates an error or loss of
signal in one of the PRI lines. It lights orange
when the gateway fails the self test during boot
sequence or when there is a loss of frame
alignment during a call.
•
ACT—The Activity LED indicates there is call
activity.
•
SWAP RDY—This LED lights blue to indicate
that it is safe to insert or remove an gateway
module in chassis slots 2, 3, or 4 with the chassis
power on.
When you remove the gateway, the swap ready
feature is activated when you unlock the red
button in the right latch. This feature allows the
gateway to disconnect calls in an orderly manner
and stop its registration with the gatekeeper.
When you instal a gateway in the chassis, this
LED indicates that it is safe to close the latches to
secure the module in the slot.
The RTM must be installed before you install or
remove a gateway.
Table 1-5 Cisco IPVC 3540 PRI Gateway Front Panel Components
Component Description