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PDH-2:E1 and V.35 fiber optic modem

E1 and V.35 fiber opitcal modem

two channel fiber optic modem

More details

PDH fiber to E1 and V.35 fiber optical modem:PDH-2

E1/V.35 optional fiber optical modem

PDH-2 is high-speed fiber optic modem with two E1/V.35 interface optional.
The two interfaces of PDH-2 can be V.35 or E1 (G.703), and also one can be V.35, another is E1 (g.703).
The data transmitting rate is from N*64K (N=1-31) to 2048 Kbps. 
The clock is optional internal, external and slave.
To achieve point to point testing, PDH-2 can process the diagnosis of some troubles though the switch AL, DL and RL.
There are many indicators LEDs on the panel to display work state, such as PWR,RXD,TXD, SYNC, TEST...
E1 (G.703) interface comply with ITU-T G.823, G.703 and G.742, it can be impedance balance120ohm (RJ45) or unbalance 75ohm (BNC)
The requirements to the fiber can be single mode/multi mode, single core/double core,
SC/FC/ST, 2km/20km/40km/60km
Power supply: AC 220V or DC -48V.


  PDH-2 provides two interfaces of E1(g.703) or V.35, and the rate to every transmitting channel of E1 or V.35 can be up to 2Mbps. It was made by ASIC circuitry technology, we can also call it " PDH"

  Obviously, the advantage of this equipment is reduced the cost. It can achieve fiber to V.35 directly in stead of using the PDH and converter. What's more, the clock (slave) of local PDH-2 will automatically follow the clock (internal/external) of remote PDH-2 ,so it's very easy to operate.


 1.Fiber optic modes:8.3/125um 8.7/125um 9/125um 10/125um single module
 2.Transmission distance:0-60Km
 3.Fiber optic interface:SC
 4.Wave length:Options: 1310nm 1550nm
 5.Transmitting electrical level:0~6dBm 
 6.Receiving sensitivity:-36dBm
 7.Decaying:1310nm window0.4dB/km, 1550nm window 0.25dB/km
 8.Data interface:V.35 mode, G.703 mode
 9.Data rate:N*64Kbps(N=1--31); 2048Kbps
10.Transmission mode: synchronous
11.Line interface:BNC;RJ45
12.Clocking:line clock, external clock, internal clock
13.DCE interface:V.35 or V.24/RS232C
14.Power supply:AC 220V +/- 10%,50Hz; DC-48V
15.Power consumption:5W
17.Humidity:0 ~95% 

Typical Application


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