STM-4-SDH  Type 

Applies 19? standard rack of 1U high,the outside profile of the rack is shown below.

 

The front panel includes power switch(POWER), STM-4 optical interface, 1000Base-LX (SFP) interface, 1000Base-T interface,Network Management System interface and indicators etc.

Front Panel description

SDH:  2 X STM4 interface, SFPStandard

Ethernet:  2 X 1000Base-LX or1000Base-SX, SFP standard, 2 X 1000Base-T interface, Rj45

NMS: Network Management System, 100Base-Tinterface

 

TECHNICAL PARAMETERS

 

STM-4 Optical interface

Optical interface speed: 622080kbit/s(STM-4, G.957, framestructure G.707)

Interface code type: Accordto the codes stipulated in G.957

Digital signal: Accord to G.707 and G.958

Light source: FP/DFB

Output optical power: ? -15dBm(15km), ? -3dBm(40km,80km)

Receiver type: PINFET

Receiving sensitivity: ? -28dBm (BER ?10^-11)

Optical connector type: LC

Central wavelength: 1310/1550 nm (depending on optical module)

Optional transmission distance: 15km ,40km, 80km or more