DHODT-E is modular integrated fiber optical multiplexer with 4 slots which can be installed different modules,like 4*E1,RS232,Ethernet,FXO/FXS..ect. 1+1 redundancy backup of optical path protection optional.

DHODT-E Series of Modular Integrated Optical Transmission Multiplexer is an optical multiplexer product with 1+1 redundancy backup of optical path protection ,in modular design and flexible structure,with independent functional modules while easy for combination,and able to derive a series of multi-service interfaces.Different interface modules can be selected based on various user requirements with available 4 modular slots and user requirements under different application environments can be catered to by adding or swapping interface modules.It is wildly used in voice and data application field

*Provider 4 slots for modules, with 1 Ethernet interface (optional)
*Various functional modules:E1,V.35,FXO/FXS,RS232/RS485,Ethernet, order wire module, NM module, alarm output terminal module
*Flexible configuration:4/8/12/16E1
*Support ALS (Automatic Laser Shutdown) function
*Double optical port optional for 1+1 protection
*Support the local/remote E1 loop back
*SNMP with NM interface (RS485) via external management agent
*Power supply:DC -48V,AC 220V, DC -48V & AC 220V
*Provide with remote failure alarm detecting function (optional)
*Comprehensive LED indicators on front panel,convenient for the diagnosis of equipment

Optical interface
Line Bit Rate:100 Mbit/s
Line Code Type:4B5B
Optical Source:LD
Output Power:≥-9dBm
Receiver Type:PINFET
Receiver Sensitivity:≤-38dBm(BER ≤10-10)
Type of Optical Connector:FC/SC
Focus Wavelength:1310/1550 nm

Electrical interface
Interface Bit Rate:2.048Mbit/s ±50ppm
Max. Transmission Rate:100Mbit/s
Different interface types can be selected and comply
with  corresponding interface standards

Structure & Dimensions
Standalone Type(19”):440mm(W)×43.5mm(H)×150mm(D)
Weight:4.0kg
Rack Type:EIA 19” Rack Type

Service Card
4*E1 interface card (75ohm)
4*E1 interface card (120ohm)
2*V.35 interface card
4*V.35 interface card
4*RS422/RS485 interface card
4*FXO/FXS Voice Channel interface card
8*FXO/FXS Voice Channel interface card
2M Ethernet interface card
1+1 fiber protected card

Assistant Function
SNMP management interface (RS485)
Orderwire Phone interface
Output of Alarm interface
RS232/RS485 data interface
Double Power (AC 220V and DC -48V,double AC 220V, double DC -48V)