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Multiplexer-Crossconnector E1-DXC
(rack-mount model 1U)


Multiplexer-Crossconnector E1-DXC Features:
  • Four E1 ports
  • Synchronous V.35/RS-530/RS-449/RS-232 or Ethernet interface (optional)
  • ITU G.703, G.704, G.706 and G.823 compliant
  • Up to 2 km (22 AWG twisted-pair cables)
  • CAS and CRC4 framing
  • 128 x 128 non-blocking switching matrix
  • Sa bits crossconnection
  • Clock sources: Internal oscillator, E1 receiver or synchronous port
  • Master & backup clock sources
  • Asynchronous mode for RS-232 interface
  • Digital and line loopbacks
  • Integrated HDLC buffer
  • Integrated BER tester
  • Supervisory RS-232 port
  • SNMP Ethernet 10Base-T control port
  • Remote management
  • Dry contacts alarm interface
  • Rack-mount 19'' 1U
  • AC or DC power
  • Upgradeable firmware
  • Certificate N OS-2-SP-1638

The E1-DXC device has four E1 interfaces. One E1 port can be replaced with serial multi-standard or Eternet interface. The multi-standard interface is switchable by adapter cable to RS-232, RS-530, RS-449 or V.35 standards. The E1-DXC provides n*64 Kbps (n = 1-31) cross-connect between any ports.

The device can be AC (220V) or DC (60V) powered and provided as a rack-mount 19'' 1U case (the device is also available as a stand-alone unit and as a card for 19'' 3U Cronyx rack.

The device setup and diagnostic mode control are performed via the RS-232 supervisory port, from remote device or via additional SNMP port.

Currently available models are listed in Prices. Please, contact technical support if you are unsure which model to choose.


E1 Interfaces
Line Code HDB3
Line Impedance 120 Ohm (Twisted Pair)
Receive Signal Attenuation Range from 0 to 43 dB (up to 2 km of 22 AWG twisted-pair cable)
Jitter Attenuator In either the receive or the transmit path, programmable for 120UIpp attenuation
Frame Structure per G.704
Multiframes CRC4, CAS
Frequency Offsets Adjustment Controlled Frame Slip
Digital Interface
Data Transfer Rate up to 1984 kbps (Nx64 kbps)
Clock Options Supported TXC, RXC, ETC, ERC
Modem Control Signals DTR, DSR, CTS, RTS, CD
Interface Ethernet
Interface 10/100Base-T
Connector Type RJ-45 (female)
Data Transfer Rate up to 1984 kbps (framed Nx64 kbps),
or up to 2048 kbps (unframed)
Mode 100 Mbps Full-duplex,
100 Mbps Half-duplex,
10 Mbps Full-duplex,
10 Mbps Half-duplex,
or Autonegotiation
Address table size 15000 MAC addresses
Maximum packet size 1600 bytes, including MAC header
Protocols Transparent or Cisco-HDLC bridging IEEE protocol, automatically selected
Quality of Service 8 priority levels
Alarm Interface
Connector Type 6-pins Mini DIN (female)
Relay Contact Current up to 250 ma
Relay Contact Voltage up to 175 VDC
Supervisory Port
Interface Type RS-232
Serial Protocol asynchronous 9600 bps, 8N1
Connector DB-9 (female)
Loopbacks Digital (for models with digital interface) and Line Loops, activated via supervisory port or via SNMP port
BER Tester Activated via supervisory port, from remote device or via SNMP port


Some of the documents are in Adobe® Acrobat® Reader® format

PDF  User's Manual for E1-DXC/S with SNMP port in Russian
PDF  User's Manual for E1-DXC/S-4E1 model (4xE1, 19" 1U, without SNMP port) in Russian
PDF Справочник по интерфейсным кабелям Cronyx.
MIB  MIB-files for SNMP-management

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