Some customers may don’t know the pin of each interfaces of E1 to V35 converter,for convenient using, we show the pin definition as following(it also can be found on the user manual attach with device):

E1 Interface (desktop type) 

E1 interface of this device provide 75Ω and 120Ω impedance. Unbalance E1 (75Ω), and balance E1 (120Ω) switch button is on the back panel.

E1 interface pin definition as follows:

V.35 port (desktop type) 

 DB25 receptacle on the rear panel used as V.35 data connector, the pins defined as follows:

The attachment of the device has a straight-through cable for transfer DB25M to DB34F, used to directly connect with DTE. Use crossover cable when need to connect with DEC, and contact us.

 E1 to V35 converter