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IDM MSTP155-16 SDH Multi-Service Access Platform

IDM MSTP155

IDM MSTP155

SDH·📅UpdatedMay 12, 2026·✍️管理员

155M optical interface, 19-inch 1U standard chassis, providing 2 STM-1 interfaces, 4 FE interfaces, up to 16 E1 terminations, 3 universal slots supporting 3 service slots, accommodating E1 service cards, FXS/FXO cards, V.24/V.35 cards, Ethernet expansion cards, video cards, and universal service cards, flexibly configured as required; equipped with TelecomBUS expansion bus for extending Gigabit Ethernet interface cards or 4 groups of physically isolated EOS Ethernet.

Overview:

    The IDM MSTP155-16 Multi-Service Access Platform is an STM-1 level multi-service SDH optical transmission system built on SDH and EOS technologies, fully compliant with ITU-T standards. This device provides users with access and transmission of multiple services, offering two 155.52Mbps optical interfaces (A and B), up to 18 10M/100M Ethernet interfaces, and 16 groups of E1 interfaces. It features ITU-T G.813 standard network element timing, VC-12 cross-connection, and channel protection functions. Additionally, the IDM MSTP155-16 can serve as an add-drop multiplexer or terminal multiplexer for building point-to-point, point-to-multipoint chain, and ring transmission networks. The IDM MSTP155-16 Multi-Service Access Platform is widely applicable in public telephone network access or dedicated line information transmission for telecom data services, power, banking, public security, and military sectors.

MSTP155-16

MSTP155-16

Product Features:

   19-inch 1U standard chassis structure for easy installation;
   Integrates SDH, PDH, and IP access functions to meet most remote service access requirements;
   Supports 3 service slots, accommodating E1 service cards, FXS/FXO cards, V.24/V.35 cards, Ethernet expansion cards, video cards, and universal service cards, flexibly configured as required;
   Multiple clock modes to meet clock requirements in various application environments, including local crystal oscillator clock, line-derived clock, and external clock 2MBIT/2MHZ;
   Comprehensive monitoring and alarm functions. Panel indicators display specific alarm status, and the device can output alarm information;
   The host provides dual optical or dual electrical SDH interfaces for easy chain network or redundant ring topology construction;
   Supports point-to-point, chain, and ring networking, and can also be jointly networked with centralized MSTP systems;
   Cross-connection capacity of 128×128 VC-12;
   FC/SFP optical modules available in optical port mode;
   Interoperable with STM-1 optical interfaces of any standard SDH/MSTP equipment;
   DC-48V and AC220V power supply options available.

Technical Specifications:

Optical Interface

Connector Type

FC (SC etc. customizable)

Fiber Mode

Single-mode (multi-mode optional)

TX/RX Rate

155M/155M

TX/RX Wavelength

1310nm/1550nm

Optical Output Power

-15~-8dBm

Receiver Sensitivity

Better than -32dBm

Transmission Distance

20Km, optional long-distance optical modules available for extended fiber transmission.

E1**Interface

Line Rate

2048Kbps

Line Code

HDB3

Standard Protocol

ITU-T G.703 compliant

Impedance

75Ω/120Ω

Frame Structure

PCM30/31

Signaling

Channel-associated signaling

Ethernet

Connector Type

RJ-45

Transmission Rate

N×2.048Mbps (N≤50)

Standard Protocol

IEEE802.3 compliant

Operating Mode

Full/half duplex/auto-negotiation

Power Supply and Consumption

Power Supply

AC220V/DC-48V

Power Consumption

10W

Environmental Conditions

Operating Temperature

-15oC ~+50oC

Relative Humidity

0~95% (non-condensing)

Product Dimensions

Length×Depth×Height

440×230×45(mm)

Application Example 1   Building a Star Network with IDM MSTP155-16
**            
   IDM MSTP155-16 devices form a star network with centralized SDH equipment via fiber optics, aggregating remote services at the central site for unified monitoring and management of remote nodes.

Star

Application Example 2  Building a Ring Network with IDM MSTP155-16

    Multiple IDM MSTP155-16 devices form a ring network, and the 1+1 channel protection mechanism ensures real-time and accurate transmission of all data and voice services within the ring.

Ring

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