
IDM MAP4E1-30 Integrated Service Cross-Connect Multiplexer
The IDM MAP4E1-30 Integrated Service Cross-Connect Multiplexer is a comprehensive service platform that integrates 64K narrowband service access, PCM multiplexing, and 64K timeslot cross-connection. The IDM MAP4E1-30 device is mainly used for service access and cross-connection at the access layer in data communication networks. It features complete synchronization and timing functions, providing non-blocking cross-connection at 64K level across 4 E1 channels, and can simultaneously provide 30 channels of 64K services, including telephone, magneto telephone, common battery telephone, and V.24 data services.
title: "IDM MAP4E1-30 Integrated Service Cross-Connect Multiplexer"
model: "IDM MAP4E1"
category: "PCM"
keywords: "PCM equipment,PCM integrated service cross-connect multiplexer,PCM multiplexer,PCM cross-connect multiplexer,timeslot cross-connect equipment"
description: "The IDM MAP4E1-30 Integrated Service Cross-Connect Multiplexer is an integrated service platform that combines 64K narrowband service access, PCM multiplexing, and 64K timeslot cross-connect. The IDM MAP4E1-30 is mainly used for service access and cross-connect at the access layer of data communication networks. It features complete synchronization and timing functions, providing non-blocking 64K-level cross-connect across 4 E1 channels, while supporting up to 30 channels of 64K services, including telephone, magneto telephone, common battery telephone, and V.24 data services."
cover: "/images/imports/img-2280f8e2.jpg"
coverAlt: "IDM MAP4E1-30 Integrated Service Cross-Connect Multiplexer"
featured: "true"
publishDate: "2026-05-12"
Overview
The IDM MAP4E1-30 Integrated Service Cross-Connect Multiplexer is an integrated service platform that combines 64K narrowband service access, PCM multiplexing, and 64K timeslot cross-connect.
The IDM MAP4E1-30 is mainly used for service access and cross-connect at the access layer of data communication networks. It features complete synchronization and timing functions, providing non-blocking 64K-level cross-connect across 4 E1 channels, while supporting up to 30 channels of 64K services, including telephone, magneto telephone, common battery telephone, and V.24 data services.


IDM MAP4E1-30 Integrated Service Cross-Connect Multiplexer image
Product Features
Adopts a 19-inch 1U standard chassis for easy installation.
Full-timeslot non-blocking cross-connect across 4 E1 groups;
The main unit provides 30 channels of 64K (or Nx64K) user narrowband service access;
The main board provides 15 service card slots, with up to two service channels per card;
Voice interfaces can be FXO central office automatic telephone, FXS remote automatic telephone, or MAG magneto telephone; data services include V.24/RS232/RS485/RS422, X.50/X.58, co-directional 64K, V.35/V.36 with Nx64K bandwidth, and Ethernet bridge;
Supports serial port network management or Ethernet SNMP network management;
Supports AC 220V power supply or DC -48V power supply;
4 E1 groups can form point-to-point, chain network, star network, and other topologies.
Technical Specifications
1) E1 Interface
Line Rate | 2.048Mbps | Line Code | HDB3 |
Standard Protocol | Supports ITU-T G.703 | Impedance | 75Ω/120Ω |
Frame Structure | PCM30/32 | Signaling | Channel Associated Signaling |
2) Ethernet (FE)
Interface Type | RJ-45 | Transmission Rate | N×VC12 (N≤50) |
Standard Protocol | Supports IEEE802.3 | Operating Mode | Full/Half Duplex/Auto-negotiation |
3) Ethernet (GE)
Interface Type | RJ-45 | Transmission Rate | N×VC12 (N≤63) |
Standard Protocol | Supports IEEE802.3 | Operating Mode | Full/Half Duplex/Auto-negotiation |
4) FXO、FXS Interface
Audio Range | 300Hz~3400Hz | Compression Rate | A-law per ITU G.711 |
Impedance | Triple complex impedance 200Ω+560Ω//0.1μF | Loop Current | 20mA/channel |
5) Co-directional 64K Interface
Line Code | G.703 Standard | Line Rate | 64Kbps
|
Impedance | Balanced 120Ω | Fully compliant with ITU G.703 recommendation | |
6) EM2/4 Wire Interface
Audio Range | 300Hz~3400Hz | Impedance | Balanced 600Ω |
Compression Rate | A-law per ITU G.711 | Return Loss | ≥18dB |
7) Magneto Interface
Audio Range | 300Hz~3400Hz | Impedance | Balanced 600Ω |
Compression Rate | A-law per ITU G.711 | Return Loss | ≥18dB |
8) V.24 Interface
Transmission Rate | Asynchronous ≤9600bps; Synchronous 64Kbps | Electrical Characteristics | Compliant with CCITT V.28 protocol |
9) V.35 Interface
Interface Type | RJ-45 | Electrical Characteristics | Compliant with ITU-T V.35 recommendation |
Transmission Rate | n×64Kbps (n=0~31) | Terminal Interface | Compliant with ISO2593 |
10) Power Supply and Consumption
Power Supply Mode | AC220V/DC-48V | Power Consumption | ≤150W |
11) Environmental Conditions
Operating Temperature | -10°C ~ +50°C | Relative Humidity | 0~95% (non-condensing) |
12) Product Dimensions
Length × Depth × Height | 482×309×44(mm) |
Application Examples

Typical networking topology

E1 transmission link primary/backup protection application

DXC timeslot cross-connect function application
Line Code | G.703 Standard | Line Rate | 64Kbps
|
Impedance | Balanced 120Ω | Fully compliant with ITU G.703 recommendations | |
6) EM2/4**** Line Interface
Audio Range | 300Hz~3400Hz | Impedance | Balanced 600Ω |
Compression Rate | A-law per ITU G.711 | Return Loss | ≥18dB |
7) Magneto Interface
Audio Range | 300Hz~3400Hz | Impedance | Balanced 600Ω |
Compression Rate | A-law per ITU G.711 | Return Loss | ≥18dB |
8) V.24**** Interface
Transmission Rate | Asynchronous ≤9600bps; Synchronous 64Kbps | Electrical Characteristics | Compliant with CCITT V.28 protocol |
9) V.35**** Interface
Interface Type | RJ-45 | Electrical Characteristics | Compliant with ITU-T V.35 recommendations |
Transmission Rate | n×64Kbps (n=0~31) | Terminal Interface | Compliant with ISO2593 specifications |
10) Power Supply and Consumption
Power Supply Mode | AC220V/DC-48V | Total Power Consumption | ≤150W |
11) Environmental Conditions
Operating Temperature | -10°C ~ +50°C | Relative Humidity | 0~95% (non-condensing) |
12) Product Dimensions
Length × Depth × Height | 482×309×44 (mm) |
Application Examples

Typical Network Topology

E1 Transmission Link Primary/Backup Protection Application

DXC Timeslot Cross-Connection Function Application



