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Interface cables and connection methods
For more information about E1 interface cables and connection methods, see "E1 interface."
HMIM-2VT1
Introduction
The 2-port T1 voice interface module HMIM-2VT1 handles dense voice signals in VoIP system. It
provides two CT1/PRI ports that allow access of a maximum of 48 channels of voice signals.
Interface specifications
Table 157 Interface specifications
Connector RJ-45
Number of connector 2
Interface standard
• G.703/T1.102
• G.704
• AT & T TR 54016
• AT & T TR 62411
• ANSI T1.403
Interface rate 1.544 Mbps
Cable type T1 cable (100-ohm standard shielded cable)
Operating mode
• CT1
• ISDN PRI
Services
• Backup
• Terminal access
• ISDN
Interface LEDs
Figure 116 HMIM-2VT1 panel
Table 158 LED description
LINK/ACT
• On: Carrier signal has been received.
• Off: No carrier signal has been received.
• Flashing: Data is being received and/or transmitted.
LP/AL
• On: The interface is in a loopback.
• Off: No loopback or alarm is present.
• Flashing: An alarm indication signal (AIS), loss of frame alignment (LFA)
signal, or remote alarm indication (RAI) signal is present.
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