Huahuan_Products_Hybrid SDH+PCM_H9MO-LMXE+.V2 Integrated Access Multiplexer
Login Register

H9MO-LMXE+.V2 Integrated Access Multiplexer

Product Overview

H9MO-LMXE+.V2, which was developed by Huahuan, provides various features and applies todifferent networking, meeting customers' requirements. The H9MO-LMXE+.V2 is an integrated access multiplexer of Huawei. Traditional pulse code modulation(PCM) devices need to work with optical transmission devices. Based on the MSTP architecture, the H9MO-LMXE+.V2 integrates SDH transmission and PCM services.Traditional networking must use PCM and SDH devices independently.

H9MO-LMXE+.V2, which is deployed between the backbone network and access network,provides various service ports and large-capacity transmission capabilities.With the small size, lower power consumption, high reliability, H9MO-LMXE+.V2 is easy to maintain and manage, which saves space in the equipment room and minimizes the CAPEX and OPEX.

H9MO-LMXE+.V2 is widely used in power, oil, and transportation industries, and for municipal NM and water resources monitoring. It supports transmission of monitoring, remote control, and alarm data signals, and provides dispatching phone and administrative phone services on the transport network.

H9MO-LMXE+.V2 supports the following transmission modes:

     ●  Optical port transmission with the rate of STM-1/STM-4/STM-16

     ●   E1 port transmission

H9MO-LMXE+.V2 supports the following services on different ports:

     ●  PCM voice services on FXO, FXS, hotline, magnet, 2/4-wire audio ports and EM

     ●   Low-speed synchronous data services (N x 64 kbit/s V.35, X.21, and C37.94data), asynchronous data services (RS-232/V.24/V.28, RS-422, and RS-485/V.11), 64kbit/s G.703 co-directional data/C37.94 teleprotection interface, Dry contact interface, High voltage protection interface etc.

     ●  PDH services through the E1, E3/DS3 ports.

     ●  Ethernet services including switching, channel Ethernet services and FE/GEservices.

     ●  Support Layer-3 routingcard, RS-232 conference, 2-wire/4-wire audio voice conference, analog telephone conference.


Cross-connection capacity

STM-1: 20 x 20 VC-4s, 60 x 60 VC-3s, 1260 x  1260 VC-12s

STM-4: 32 x 32 VC-4s, 96 x 96 VC-3s, 2016 x  2016 VC-12s

STM-16: 96 x 96 VC-4s, 96 x 96 VC-3s, 2016  x 2016 VC-12s

Cross-connection direction

Group to tributary, tributary to group, group  to group, tributary to tributary, internal 64 kbit/s timeslot  cross-connection of PCM cards

Cross-connection mode

bidirectional, unidirectional, multicast/broadcast  and loopback


Optical  protection capability

SNCP for VC-12, VC-3, and VC-4 services  (Protection switching is implemented within 50 ms)

Linear 1+1 MSP, two-fiber unidirectional  MSP at the STM-1 and STM-4 levels

Power  redundant supply

Two power cards work in 1+1 backup mode.

NM  channel

External DCN

DCC NM channel: select any group from  D1-D3, D4-D6, D7-D9, and D10-D12

E1 NM channel: assigned to any VC-12 of the  cross-connection card or STM card, or E1 port on the E1 interface card.

EoE in-band NM channel

N*64 kbit/s in-band monitoring

Monitoring channels  of PCM cards (Sa in-band monitoring)

E1  protection capability

Support 1+1  protection between any two E1 and 56 pairs protection can be configured at  most

Chassis dimention (W x D x H)


Power  supply

DC power supply: -48 V DC

AC power supply: 220  V/110 V AC

Maximum  Power Consumption

Typical  application: ≤85W

Operating  environment (temperature, humidity)

-15°C ~ +55°C, 0-95%RH (non-condensing)

Storage environment (temperature,  humidity)

-40°C ~  +105°C, 0-95%RH (non-condensing)

Typical Application

Standard Compliance


Standards and Protocols

SDH optical port

G.957, Frame  structure: G.707

C37.94 optical port

IEEE C37.94TM-2002

Audio voice port

G.711, G.713

Asynchronous data port

V.24, V.11

Co-directional  data port


E1,  E3/DS3 port

G.703, G.704

Clock  port


Ethernet  port

IEEE 802

G.7041/G.704  2/G.7043 and G.8040