Introduction:
MODEL7221 converter provides conversion between ITU-T G.703 standard E1 interface and standard V.35 interface, can convert E1 channel of SDH, PDH, and other Optical Transmission Equipment or microwave, satellite Equipment to V.35 channel, Extend V.35 channel of DDN. Used widely in data communication networks, Connecting with V.35 interface of Routers and Optical Transmission Equipments without G.703 interface, realize match between different network equipments, and transparent to upper protocol layer.
Features:
1. Convert V.35 interface to FE1(2M framed G.703) interface
2. Support N×64Kbps(N=1~32) rate
3. Random distribute timepiece and bandwidth
4. Support line resume clock, local clock and equipment clock
5. E1 (G.703) interface support 120ohm (RJ-45) and 75ohm (BNC double coaxial)

Specifications:
E1 interface

Standard: Comply with ITU-T G.703
Output tingle displace: accord ITU-TG.735 advice
Input tingle limit: accord ITU-TG.823 advice
Output tingle: accord ITU-T G.823 advice
Frame format: framed
Interface rate: N×64Kbps (N=1~32)
CRC checkout: no
Port coding: HDB3
Port transmission: 2KM
Port protection: 1500V electromagnetism isolate
Port connector: 120 Ohm(RJ-45) and 75 ohm(BNC double coaxial)
V.35 interface
Standard: Comply with V.35 (DTE)
Clock: Line clock, Local clock
Port connector: DB-25 female (DB25 to M/34 cable)
Line code: NRZ
Clock selection: Internal clock, V.35 line clock, E1 recovery Clock
Test facility : Bite Local& remote loop test
Environment, Power and Dimension

Working temperature: -25 to 70°C
Storage temperature: -40 to 85°C
Humidity: Relative humidity 5% to 95%
Input power: 220VAC or -48VDC
Consumption: 2W
Power protection: From high voltage/short circuit
L×W×H: 227.4mm×146.3mm×42.7mm
Shell: Plastic
Weight: 260g
Warranty: 3 years
Approvals: FCC, CE, RoHS approvals