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Modem-converter E1-L/R
(for Rack 19" 3U10)
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Features:
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The E1-L/R is a fractional E1 access device, for transmitting digital data over framed (ITU-T G.704) E1 channels. Digital data port rates are selectable for any multiple of 64 kbps up to 1984 kbps. User data occupies only the required number of E1 frame timeslots reducing billing to only bandwidth used. E1-L/R also supports unframed E1 channels.
The E1-L/R is available in PCB for 3U high Cronyx Rack for 19 inch cabinet.
E1-L/R device may be ordered with multistandard interface. The multistandard interface is cable-switchable to RS-232, RS-530, RS-449 or V.35 standards.
Device operation may be controlled via console port (RS-232 port for supervisory terminal connection).
The E1-L/R device may be configured by DIP switches or from console.
Link testing and loopback control may be performed both from console
and from front panel.
Currently available models are listed in Prices. Please, contact technical support if you are unsure which model to choose.
| E1 Interface | |
|---|---|
| Line Code) | HDB3 |
| Line Impedance) | 120 Ohm (twisted pair) or 75 Ohm (coax cable), jumper selectable |
| Receive Signal Attenuation Range) | from 0 to -30 dB |
| Jitter Attenuator | On receive, up to 120UIpp attenuation |
| Frame Structure | In acc. to ITU-T G.704. Unframed mode available |
| Multiframing | CRC4, CAS |
| Frequency Offsets Adjustment | Controlled slip buffers in receive path |
| Connector Type) | Removable terminal board |
| Digital Interface | |
| Data Rate | up to 1984 kbps (framed Nx64 kbps), or up to 2048 kbps (unframed) |
| Clock Signals Supported | TXC, RXC, ETC, ERC |
| Modem Control Signals | DTR, DSR, CTS, RTS, CD |
| Connector Type (multistandard interface) | HDB44 (female) |
| Connector Type (V.35 interface) | M-34 (female) |
| Console Port | |
| Interface Type | RS-232 DCE |
| Serial Protocol | Asynchronous 9600 bps, 8 bits/character, 1 stop bit, no parity |
| Connector Type | DB9 (female), 9 pins |
| Diagnostics | |
| Loopbacks | Local and remote link loops, digital port loop, activated from console and by front panel switch |
| BER Tester | Activated from console and by front panel switch |
| Environment | |
| Temperature | 0 to 50 °С |
| Relative Humidity | 0 to 80 %, non-condensing |
E1-L/R. User's Manual in Russian
Cronyx interface cables guide
Return to G.703 Interface Converters or Digital Communication Equipment