Specification :

SDH MSPP STM-1 fibre optic equipment:DHODT-LM/LMX
Joe[at]veecom.com.cn

Description

SDH/MSPP

Introd uce

Overview

Core and metro networks have completely adopted SDH/MSPP, why continue to install PDH in access networks Just because of price VeeCOM's new generation low cost SDH/MSPP metro access solution "MetroEdge-Express" will help you push SDH/MSPP to the network edge.

There are two types of equipments in the MetroEdge-Express family, the CPE device (hereafter: DHODT-LM and LM/FIT) and the aggregation device at the central office (hereafter: DHODT-LMX or LMX). Based on SDH/MSPP technology, DHODT-LMX/LM SDH/MSPP access device aims at providing both TDM based traditional telecom services and ever growing IP based data services.

There are several types of CPE equipments in the family including the basic type DHODT-LM and a more flexible type DHODT-LM/FIT. The LM is designed for point-to-point application, while LM/FIT operates in ADM mode for more complicated topologies such as ring and chain networks. The multi-slot aggregate equipment DHODT-LMX can hold up to 16 tributary cards (LIU's) and up to 2 uplink network interface cards (NIU's). By selecting appropriate LIU's, the tributary slots can provide different interfaces to meet real application requirements.

Features

SDH/MSPP core, PDH price

Standard SDH, VC-12 reaches end user

STM-1 uplink instead of E1 to connect with the core networks

Up to 32 optical directions star topology

Flexible service interface (E1, Ethernet, V.35 etc), penetrating SDH core network

Complete service quality monitoring, advanced network management

High reliability, Low CAPEX and OPEX

Interoperability with popular SDH/MSPP products of other vendors

Suitable for 3G Network Transmission

Specifications Items
Aggregation Device
CPE Device

DHODT-LMX
DHODT-LM Series
DHODT-LM/FIT

Interface
For uplink: 2 x STM-1 interfaces

NIU card type: 155_O, 155-E, 21 x E1
DHODT-LM
4E1+FE
Module design, provide 4 general slots, supporting the following cards:

STM-1 card

4xE1 card

8xE1 card

Ethernet over NxVC-12 card

Framed 2xV.35 card

For downlink

16 or 32 x STM-1 optical interfaces

E1 , Ethernet , V.35 interfaces

LIU card type for connecting CPE device DHODT-LM and DHODT-LM/FIT: OFE, OPFE, OV4, OPV4, OV16, OPV16 etc

LIU card for local service access: 4XE1, 8XE1, 2XV.35, 4XFE, FE201, FE404(4-channel Ethernet over E1)
DHODT-LM/4E1
4E1

DHODT-LM/N1
4E1+FE over E1

DHODT-LM/V8
FE over (1~8) x VC-12

Optical Interface
STM-1 Interface, 155.520Mbps

Item
Output (dBm)
Sensitivity (dBm)

1310nm (standard)
-5 ~ -12