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Installation and Upgrade Guide for Cisco Unified Videoconferencing 3545 PRI Gateway and 3545 Serial Gateway Release 5.6
OL-17011-01
Chapter 2      Installing the Cisco Unified Videoconferencing 3545 Gateway
  Requirements for Installation
Cisco Unified Videoconferencing 3545 Serial Gateway RTM
The Rear Transition Module (RTM) provides the serial line connections for the Cisco Unified 
Videoconferencing 3545 Serial Gateway.
 shows the RTM panel components of the Cisco Unified Videoconferencing 
3545 Serial Gateway module. 
 describes these components.
Figure 2-3
Serial Gateway: Rear Transition Module
      
Requirements for Installation
This section describes the requirements for installing the Cisco Unified Videoconferencing 
3545 PRI Gateway and the Cisco Unified Videoconferencing 3545 Serial Gateway in a Cisco Unified 
Videoconferencing 3545 chassis. For more information, see the Platform Guide for Cisco IPVC 3644 
Chassis. The requirements are as follows:
Warning
During this procedure, wear grounding wrist straps to avoid ESD damage to the card. Do not directly 
touch the backplane with your hand or any metal tool, or you could shock yourself.
Cisco Unified Videoconferencing 3545 chassis
Proper clearance at the sides of the unit to allow adequate ventilation, and at least 20 cm clearance 
at the back of the chassis to allow access to the boards and cable connections
ALARM LEDs
Displays alarm events for the PRI line. 
YELLOW —Lights yellow when there is a loss of frame alignment at the 
remote side. 
ORANGE—Lights orange when there is a loss of frame alignment in the 
gateway. 
PRI LINE connectors
RJ-45 connectors that provide the PRI line connections for the specified 
gateway ISDN PRI port. 
Table 2-2
PRI Gateway Rear Transition Module Components (continued)
Component
Description
Table 2-3
Serial Rear Transition Module Components
Component
Description
PORT connectors
DB-60 connectors that provide the serial line connections for gateway serial 
ports 1 to 4. 
ACT and ALARM 
LEDs
ACT lights green to indicate that the specified serial line is currently in use.
ALARM lights red to indicate an internal error related to the specified line.
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PORT-4
ALARM
ACT
4
3
PORT-3
PORT-2
ALARM
ACT
2
1
PORT-1