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Interface cables and connection methods
For more information about E1 interface cables and connection methods, see "E1 interface."
HMIM-1VT1
Introduction
The 1-port T1 voice interface module (HMIM-1VT1) handles dense voice signals in VoIP system. It
provides a CT1/PRI port that allows access of 24 channels of voice signals.
Interface specifications
Table 161 Interface specifications
Connector RJ-45
Number of connector 1
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 118 HMIM-1VT1 panel
Table 162 LED description
LINK/ACT
• On means carrier signal has been received.
• Off means no carrier signal has been received.
• Flashing means data is being received and/or transmitted.
LP/AL
• On means the interface is in a loopback.
• Off means no loopback or alarm is present.
• Flashing means an alarm indication signal (AIS), loss of frame
alignment (LFA) signal, or remote alarm indication (RAI) signal is
present.
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