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

1. Overview

The IDM MSAP-G3CP SDH High-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 an integrated service platform that combines communication access, transmission, switching, dispatch, and video display control.

The IDM MSAP-G3CP 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-connection matrix at VC12 and 64K levels, and the capability to aggregate voice, IP, data, and Ethernet services.

The network management platform can adopt the Netguard network management system from 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 functions.

         

IDM MSAP-G3CP SDH High-Capacity Integrated Service Cross-Connect Multiplexer Image

2. Product Features

1)           Chassis Structure

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

2)           Transmission Interfaces

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

ØProvides standard E1 interfaces, supporting up to 336.

3)           Service (PCM) Interfaces

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

ØProvides 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

ØProvides 4032×4032 64K timeslot non-blocking full cross-connect function;

ØProvides 2016×2016 2M timeslot non-blocking full cross-connect function;

ØProvides 32×32 VC4 space-division cross-connect function;

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

5)           Network Management Capability

ØProvides a comprehensive network management software system with SDH integrated configuration and DXC cross-connect functions;

ØProvides online level testing of audio channels, and online bit error testing of 64K timeslot channels and E1 channels;

ØSupports SNMP network management protocol.

6)           Protection Capability

ØVC-4 space-division cross-connect card, 64K cross-connect card, main control card, and power supply card are dual-card mutually backed up;

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

ØDual STM-1/STM-4 optical ports with 1+1 protection;

Ø1+1 and 1:N protection for E1 ports;

ØMultiple clock source selection and protection switching including SDH optical line recovered clock, E1 line recovered clock, and master clock.

3. 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, optional long-distance optical module for extended fiber transmission
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, optional long-distance optical module for extended fiber transmission

2)        E1 Interface

Bit Rate	2.048Mbps	Line Code	HDB3
Standard Protocol	Supports ITU-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接口

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

6)        Co-directional 64K Interface

Line Code	G.703 Standard	Bit Rate	64Kbps
Impedance	Balanced 120Ω	Fully compliant with ITU G.703 recommendation

7)        EM2/4 Wire Interface

Audio Range	300Hz~3400Hz	Impedance	Balanced 600Ω
Compression Rate	A-law in ITU G.711	Return Loss	Not less than 18dB

8)        Magneto Interface

Audio Range	300Hz~3400Hz	Impedance	Balanced 600Ω
Compression Rate	A-law in ITU G.711	Return Loss	Not less than 18dB

9)        V.24 Interface

Transmission Rate

Asynchronous ≤9600bps; Synchronous 64Kbps

Electrical Characteristics

Compliant with CCITT V.28 protocol

10)     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

11)     Power Supply and Consumption

Power Supply Mode

AC220V/DC-48V

Total 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)

4. Application Example

Typical Networking Topology

As an aggregation node, the IDM MSAP-G3CP can connect upstream to the higher-level transmission network via STM-1/STM-4 optical interfaces, access the telephone exchange network via 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 via common battery telephone interfaces. It can also access the local transmission network via STM-1/STM-4 optical interfaces or E1 interfaces, networking with remote low-capacity integrated service cross-connect access devices such as the IDM MUX8 and IDM MAP8E1-30.

Remote low-capacity integrated service cross-connect access devices such as the IDM MUX8 and IDM MAP8E1-30 connect to the local transmission network via E1 interfaces, and access local analog telephones, magneto telephones, and common battery telephones via FXS analog telephone interfaces, magneto telephone interfaces, and common battery telephone interfaces.

Line Rate	2.048Mbps	Line Code	HDB3
Standard Protocol	ITU-T G.703 compliant	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	IEEE802.3 compliant	Operating Mode	Full/Half duplex/Auto-negotiation

4)        Ethernet (GE)

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

5)        FXO、FXS Interfaces

Audio Range	300Hz~3400Hz	Compression Rate	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	Balanced 120Ω	Fully compliant with ITU G.703 recommendations

7)        EM2/4****Wire Interface

Audio Range	300Hz~3400Hz	Impedance	Balanced 600Ω
Compression Rate	ITU G.711 A-law	Return Loss	≥18dB

8)        Magneto Interface

Audio Range	300Hz~3400Hz	Impedance	Balanced 600Ω
Compression Rate	ITU G.711 A-law	Return Loss	≥18dB

9)        V.24 Interface

Transmission Rate

Asynchronous ≤9600bps; Synchronous 64Kbps

Electrical Characteristics

Compliant with CCITT V.28 protocol

10)     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 specification

11)     Power Supply and Consumption

Power Supply Mode

AC220V/DC-48V

Total Power Consumption

≤150W

12)     Environmental Conditions

Operating Temperature

-10°C ~ +50°C

Relative Humidity

0~95% (non-condensing)

13)     Product Dimensions

Length × Depth × Height

482×309×132 (mm)

IV.  Application Examples

Typical Network Topology Diagram

As an aggregation node, the IDM MSAP-G3CP can be uplinked to the upper-level transport network via STM-1/STM-4 optical interfaces, connected to the telephone switching network through E1 digital trunks or FXO analog trunks, interfaced with magneto telephone exchanges via magneto telephone interfaces, and connected to common battery telephone systems through common battery telephone interfaces. Additionally, it can be connected to the local transport network via STM-1/STM-4 optical interfaces or E1 interfaces, forming a network with remote small-capacity integrated service cross-connect devices such as the IDM MUX8 and IDM MAP8E1-30.

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