More Optical Accessories,Please Visit
                                                       
 
 
New Events:
  • The soul of VeeCOM
  • SDH application for the Army
  • The solution for TDM Converter GVE-Tplus in postal office
  • VeeCOM TDM over Metro Ethernet Project
  • The solution for TDM Converter GVE in Bank
      Location : Home  Products
Products catalog
  Interface Converter
  xDSL Modem
  PDH/FOM
  TDM Over IP
  SDH/MSTP
  PCM
  E1 Protection Switch
  Data Accessories
  More Accessories
 
 
 
 

DHODT-LMA

DHODT-LMA is derived form the card-based DHODT-LMFIT to provide a more cost effective solution. It is of single board design with fixed number of interface ports. As an ADM MUX, it has two STM-1 fiber optic ports, and a set of service ports.
The DHODT-LMA is derived form the card-based DHODT-LMFIT to provide a more cost effective solution. It is of single board design with fixed number of interface ports. As an ADM MUX, it has two STM-1 fiber optic ports, and a set of service ports.

According to the number of service ports, the DHODT-LMA comes in different models, as following

Type

STM-1 interface

E1

Ethernet

V.35

DHODT-LMA841

2

8

4

1

DHODT-LMA840

2

8

4

0

DHODT-LMA800

2

8

0

0

DHODT-LMA441

2

4

4

1

DHODT-LMA440

2

4

4

0

DHODT-LMA401

2

4

0

1
 

*TM, Multi-Service, including E1, FE, V.35
*Flexible options for the STM-1 fiber optic interface, including single fiber duplex, as well as different power and wavelength choices.
*Standard based GFP/VC-12 VCAT, support VLAN, EoS
*Built-in BERT and loop-back capabilities
*Framed and unframed V.35
*Remote AC power failure alarm
*Standard 19 inch 1RU box, compact, lightweight, low power consumption
*Dual mode power supply, -48V DC or 100~240V AC field selectable
*Support online upgrade of embedded program and FPGA program

STM-1 Fiber Port

Bit rate:

155520kbit/s ± 4.6ppm

 

Line code:

Scrambled NRZ

 

Wavelength:

Default:

1310nm

Option /5:

1550nm

Output power:

Default:

Min:  –12 dBm

Option /L:

Min:  -5dBm

 

Option /S:

Min:  –14 dBm

Option /SL:

Min:  -5dBm

Sensitivity:

Default:

-36dBm

Option /S:

-30dBm

Overload Power:

 

-3dBm

 

 

Connector:

Default:

SC

Option /F:

FC

 

Option /S:

SC

 

 

E1 port

Bit rate:

2.048 Mbps ± 50 ppm

Line code:

HDB3

Impedance:

Default: 75ohm        Option /T：120ohm

Frame structure:

Unframed

Interface numbers:

0~8

V.35 port

Bite rate:

Nx64kbps ± 50 ppm，N£31

Frame structure:

Framed E1/G.704 or unframed

Mode:

DCE

Port qty:

0~1

Ethernet port

Mode:

10Base-T/100Base-T full/half duplex auto-negotiation

HP auto-MDIX，MDI and MDI-X auto-adapted

Transmission channel

NxVC-12  N£63, GFP encapsulation

Ports qty.

0~4

Management Port

Ethernet:

RJ45, 10Base-T,  MDI port

Others:

DCC, E1

Clock

Inner clock, STM-1 line clock, E1 interface clock, external clocl.

Mechanical/Electrical

Dimension:

44mm x 138mm x 440mm (H/D/W)

Net weight:

2kg

Power  (AC)：

100 ~ 240 V, 50/60Hz

Power  (DC)：

-48 V (-58V ~ -38V)

Consumption:

≤ 10W

Working temp: 

0 ~ 45°C

Humidity:

0-90%RH (Non-condensing)

Ethernet socket:

RJ-45

V.35 socket

DB25

E1 socket:

RJ48

Fiber socket:

Default: SC           Option /F: FC

 

 
 
Copyright © 2012 -2013 BELL DATA & COMMUNICATION CO LTD. All Rights Reserved    Telephone: +86-519-86809961   Fax: +86-519-86809967 

   Address: 15A ZHONGNAN BUILDING, NO.33 GUANHE WEST ROAD, CHANGZHOU,JIANGSU, CHINA