Channel drop units and channel protection units

Descriptions
Technical parameters
Сircuitrys

Descriptions

Channel drop units and channel protection units are installed in full-featured REG-F and are designed to connect external equipment with various interfaces.

CHANNEL DROP UNITS

Drop unit for three VF channels V3-R
Drop unit for two VF channels and one asynchronous RS-232/RS-485 channel V2A1-R
Drop unit for one VF channel and two asynchronous RS-232/RS-485 channel V1A2-R
Drop unit for two channels for connecting telephone subscribers FXS2-R
Drop unit for channel intervals of the digital E1 stream G703-R
E1/Ethernet Bridge BS4E-3-R
 

CHANNEL PROTECTION UNITS

Protection unit for three VF channels V3-R-PI
Protection unit for two VF channels and one asynchronous RS-232/RS-485 channel V2A1-R-PI
Protection unit for one VF channel and two asynchronous RS-232/RS-485 channel V1A2-R-PI
Protection unit for two channels for connecting telephone subscribers FXS2-R-PI
Protection unit for the channel interval dropping path of the digital E1 stream G703-R-PI
E1/Ethernet bridge protection unit BS4E-3-R-PI

Technical parameters

 

VF channel

Input impedance

600 Ohm

Output impedance

600 Ohm

Input range

-40 to +5 dB

Input adjustment range

45 dB

Output level

- 13 dB/+4 dB

Bandwidth

300 to 3400 Hz

Total harmonic distortion

maximum 0.5%

Asynchronous channel

Interface

RS-232/RS-485

Data rate

600 to 115 200 bps

Transmission mode

8-N-1

Transmission of flow control signals (for RS-232)

RTS, CTS, DTR, DSR, DCD

FXS channel

Line voltage, minimum

30 V

Call voltage, minimum

30 V

Line current

20 ±1 mA

Tone level

14 ±1 dB

Generated signals

As per GOST 10710-81

Е1 interface

Transmission standard

As per ITU-T G.703

Line code

HDB3

Wave impedance

120 Ohm

Coding

As per ITU-T G.704

Ethernet

Number of ports

4

Isolation voltage of a line transformer

minimum 1500 V

Modes

Auto, 10HD, 10FD, 100HD, 100FD

MAC address table of the network switch

2048 entries

Pair autocrossing

Auto MDIX

 

Сircuitrys

VF CHANNEL ARRANGEMENT DIAGRAM

Shema org kanalov TCH 

TELEPHONE CHANNEL ARRANGEMENT DIAGRAM

Shema org telef kanala 

ONE VF CHANNEL AND TWO ASYNCHRONOUS CHANNEL ARRANGEMENT DIAGRAM

Shema org kanalov TCH i V1A2 

EТHERNEТ CONNECTION DIAGRAM

Shema podkluchenia k Ethernet 

ARRANGEMENT DIAGRAM FOR DROPPING CHANNEL INTERVALS OF THE E1 STREAM

Shema vydelenya potoka E1