Description
Loop Telecom’s E&M plug-in card is designed for the Loop-AM3430. E&M provides user selectable A-law or mu-law coding.
The AM3430 E&M card features 4-RJ45 ports for connecting to PBX tie lines, carrier facilities, or 4-wire modems. Each RJ45 port has 8 pins supporting the following signaling and transmission pairs: E/M, SG/SB, T/R, and T1/R1.
The card can configure different types by jump location. Users can utilize additional jumpers enclosed in the package for Type I, II, III, IV, V and TO (Transmit Only) signaling options. Type TO provides dedicated 4-wire transmit and receive paths to lease-line modem equipment. There are choices of two side: Using A side mode, the card can operate as switching equipment. Using B side mode, the card can operate as channel equipment. There are 2 diagnostic functions supported: off hook test, and LED for signaling monitoring. Moreover, users could have LEDs provide channel TSI setting and channel status indicators.
Features
- Five E&M signaling types are supported: Type I, Type II, Type III, Type IV, and Type V
- Jumpers selectable for Type I, II, III, IV, V or Tx only
- TO (Transmit Only) supported
- A-side and B-side supported: A-side is exchange side; B-side is carrier side
- User programmable A-law or mu-law coding
- Balance 600 ohm impedance
- LED indication for TSI and signaling status
- Support diagnostic functions: Per-port signaling test
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