PCM Equipment IDM MSAP-G3CP SDH Large-Capacity Integrated Service Cross-Connect Multiplexer

I. Overview

The IDM MSAP-G3CP SDH Large-Capacity Integrated Service Cross-Connect Multiplexer is an integrated service platform that combines narrowband service access, broadband service access, PCM multiplexing, 64K timeslot cross-connection, E1 cross-connection, STM-1/STM-4 cross-connection, SDH/PDH optical transmission, telephone exchange digital signaling access, Ethernet switching, and multimedia dispatch. It is a comprehensive service platform integrating communication access, transmission, switching, dispatch, and video display control.

The IDM MSAP-G3CP equipment is primarily used for service access, transmission, and aggregation at the access layer of data communication networks. It features complete synchronization and timing functions, a powerful non-blocking cross-connect matrix at both VC12 and 64K levels, and aggregation capabilities for voice, IP, data, and Ethernet services.

The network management platform can adopt the Netguard Network Management System developed by Beijing Raytrans Digital Technology Co., Ltd., providing powerful server/client-based, hierarchical management capabilities, including configuration management, fault management, performance management, permission management, and log management.

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IDM MSAP-G3CP SDH Large-Capacity Integrated Service Cross-Connect Multiplexer image

II. Product Features

1. Equipment Structure

Ø The chassis adopts a (6+1)U, plug-in card design, providing 16 front plug-in slots and 12 rear plug-in slots.

2. Transmission Interfaces

Ø Provides standard STM-4/STM-1 optical transmission interfaces, supporting up to 48 optical directions;

Ø Provides standard E1 interfaces, supporting up to 336 channels.

3. Service (PCM) Interfaces

Ø Provides voice interfaces for automatic telephone, common battery telephone, and magneto telephone, supporting up to 300 channels;

Ø Provides data service interfaces including V.24/RS232/RS485/RS422, X.50/X.58, co-directional 64K, Nx64K bandwidth V.35/V.36, and Ethernet, supporting up to 300 channels.

4. Cross-Connect Capability

Ø Equipped with a 4032×4032 non-blocking full cross-connect function at the 64K timeslot level;

Ø Equipped with a 2016×2016 non-blocking full cross-connect function at the 2M timeslot level;

Ø Equipped with a 32×32 space-division cross-connect function at the VC4 level;

Ø Signaling exchange and processing functions, program-controlled switching functions, supporting NO.7, No.1, PRI, and V5.2 signaling.

5. Network Management Capability

Ø Provides a comprehensive network management software system for SDH integrated configuration and DXC cross-connect functions;

Ø Provides online level testing for audio channels, and online bit error rate testing for 64K timeslot channels and E1 channels;

Ø Supports the SNMP network management protocol.

6. Protection Capability

Ø VC-4 space-division cross-connect board, 64K cross-connect board, main control board, and power supply board all support dual-board mutual backup;

Ø Dual AC ~220V and dual DC -48V two-level power supply mutual backup;

Ø Dual STM-1/STM-4 optical ports with 1+1 protection;

Ø E1 port 1+1 and 1:N protection;

Ø Multiple clock source selection and protection switching for SDH optical line recovered clock, E1 line recovered clock, and master clock.

III. Technical Specifications

1) Optical Interface

Interface Type	STM-4     SFP	Fiber Mode	Single-mode (Multi-mode optional)
Tx/Rx Rate	622.08Mbps/622.08Mbps	Tx/Rx Wavelength	1310nm/1550nm
Output Power	-12~-6dBm	Receiver Sensitivity	Better than-32dBm
Transmission Distance	40Km; long-distance optical modules can be optionally installed for fiber transmission over greater distances
Interface Type	STM-1     FC	Fiber Mode	Single-mode (Multi-mode optional)
Tx/Rx Rate	155.52Mbps/155.52Mbps	Tx/Rx Wavelength	1310nm/1550nm
Output Power	-12~-6dBm	Receiver Sensitivity	Better than-32dBm
Transmission Distance	40Km; long-distance optical modules can be optionally installed for fiber transmission over greater distances

2) E1 Interface

Line Rate	2.048Mbps	Line Code	HDB3
Standard Protocol	SupportsITU-T G.703	Impedance	75Ω/120Ω
Frame Structure	PCM30/32	Signaling	Channel-Associated Signaling

3) Ethernet (FE)

Interface Type	RJ-45	Transmission Rate	N×VC12 (N≤50)
Standard Protocol	Supports IEEE802.3	Operating Mode	Full/Half Duplex/Auto-Negotiation

4) Ethernet (GE)

Interface Type	RJ-45	Transmission Rate	N×VC12 (N≤63)
Standard Protocol	Supports IEEE802.3	Operating Mode	Full/Half Duplex/Auto-Negotiation

5) FXO, FXS Interfaces

Audio Range	300Hz~3400Hz	Compression	A-law per ITU G.711
Impedance	Triple complex impedance 200Ω+560Ω//0.1μF	Loop Current	20mA/channel

6) Co-directional 64K Interface

Line Code	G.703 Standard	Line Rate	64Kbps
Impedance	Balanced120Ω	Fully compliant with ITU G.703 Recommendation

7) EM2/4-Wire Interface

Audio Range	300Hz~3400Hz	Impedance	Balanced600Ω
Companding	ITU G.711 A-law	Return Loss	≥18dB

8) Magnetic Ring Interface

Audio Frequency Range	300Hz~3400Hz	Impedance	Balanced600Ω
Companding Rate	A-law per ITU G.711	Return Loss	≥18dB

9) V.24 Interface

Transmission Rate

Asynchronous≤9600bps; Synchronous64Kbps

Electrical Characteristics

Compliant withCCITT V.28protocol

10) V.35 Interface

Interface Type	RJ-45	Electrical Characteristics	Compliant withITU-T V.35Recommendation
Transmission Rate	n×64Kbps（n=0～31）	Terminal Interface	Compliant withISO2593Specification

11) Power Supply and Power Consumption

Power Supply

AC220V/DC-48V

Power Consumption

≤150W

12) Environmental Conditions

Operating Temperature

-10oC ~+50oC

Relative Humidity

0~95% (non-condensing)

13) Product Dimensions

Length×Depth×Height

482×309×132(mm)

IV. Application Example

Typical Networking Topology

As an aggregation node, the IDM MSAP-G3CP can connect upstream to the higher-level transport network via STM-1/STM-4 optical interfaces, access the telephone switching network through E1 digital trunks or FXO analog trunks, connect to a magneto telephone switch via magneto telephone interfaces, and connect to a common battery telephone system through common battery telephone interfaces. Meanwhile, it can also access the local transport network via STM-1/STM-4 optical interfaces or E1 interfaces, forming a network with remote low-capacity integrated service cross-connect devices such as the IDM MUX8 and IDM MAP8E1-30.

The remote low-capacity integrated service cross-connect devices IDM MUX8 and IDM MAP8E1-30 access the local transport network through E1 interfaces, and connect to local analog telephones, magneto telephones, and common battery telephones via FXS analog telephone interfaces, magneto telephone interfaces, and common battery telephone interfaces respectively.