TGM550 Telephony Gateway Module

The TGM550 Telephony Gateway Module (Figure 43) has two analog telephone ports, two analog trunk ports and a serial port.

The TGM550 provides the following key features:

• Voice
  • VoIP Media Gateway services
  • Two analog telephone (LINE) ports to support two analog telephones or incoming analog direct inward dialing (DID) trunks with either wink start or immediate start. An analog relay supports emergency transfer relay (ETR).
  • Two analog trunk (TRUNK) ports to support loop start and direct inward and outward dialing (DIOD) (for Japan only) trunks
  • Survivability features for continuous voice services
  • Call center capabilities
• Provisioning
  • Avaya Communication Manager (CM) media server management
  • Extensive alarm and troubleshooting features
• Survivability
  • MGC automatic switchover, migration, and survivability features
  • Dynamic Call Admission Control (CAC) for WAN interfaces
• Management: One serial port for console access over an RJ-45 connector cable

For pinouts of cable connectors for TGM550 PIMs, see RJ-11 Connector Pinout for the Analog Ports on TGM550 .

For information about installing and removing a PIM, see the J4350 and J6350 Services Router Getting Started Guide.

TGM550s are not hot-swappable. You must power off the router before the installing or removing the Avaya VoIP modules. Ensure that the Avaya VoIP modules are installed in the router chassis before booting up the system.

TGM550 LEDs indicate link status and activity. Table 100 describes the meaning of the LEDs.

Table 100: LEDs for TGM550 PIM

For more information about the TGM550, see the Hardware Description and Reference for Avaya Communication Manager.