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Modem QLink-3000/B-E1
Discontinued, recommended replacement is: QLink-3000/M-E1
Specifications
Typical transmittion range on 26 AWG (0.4 mm) cable
Documentation
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QLink-3000/E1 Features:
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The QLink-3000 family of short range modems provides high-speed data access over single-pair copper wires. It can transmit data with rates up to 2304 kbps (2048 kbps for model with single E1 port) for up to 7.6 km (on 26 AWG cable). Using lower guage copper wire may allow you to attain greater distances.
Models with two data ports includes multiplexer and allows to transmit two independent data streams over single cooper pair.
The QLink-3000/E1 modem can be AC or DC powered.
The device setup and all diagnostics options are controlled from the special supervisory port (asynchronous RS-232, 9600, 8N1) or from remote device.
The device has an upgradeable firmware.
| Line Interface | |
|---|---|
| Line | Copper twisted pair |
| Line Rate | 208 - 2064 kbps |
| Loop Length | Up to 7.6 km over 26 AWG copper wire |
| Connector Type | RJ-45 (female 8 contacts) |
| Line Code | TC-PAM |
| Transmit Timing Sources | Internal Oscillator From port (from E1 port receiver) |
| Overvoltage Protection | SIDACtor |
| Overcurrent Protection | Fuse |
| E1 interface | |
| Connector Type | RJ-45 (female 8 contacts) |
| Line Impedance | 120 Ohm (Twisted Pairs) |
| Line Code | HDB3 |
| Frame Structure | per G.704 or transparent G.703 2048 kbps stream |
| Receive Signal Attenuation Range | from 0 to 43 dB (up to 2.0 km of 22 AWG twisted-pair cable) |
| Overvoltage Protection | TVS |
| Overcurrent Protection | Fuse |
| Control interface | |
| Connector Type | RS-232 DCE, DB-9 (female) |
| Protocol | Asynchronous, 9600 bit/sec, 8 bit/symbol, 1 stop bit, no parity |
| Modem Control Signals | DTR, DSR, CTS, RTS, CD |
| Diagnoctic modes | |
| Loopbacks | Local, Remote |
| BER Tester | Built-in |
| Control | Via control port RS-232 or from remote unit |
| Physical | |
| Box | Desktop |
| Dimensions (without power supply) | 140 mm x 114 mm x 35 mm |
| Power source | |
| AC power source | 100-240V, 47-63Hz |
| DC power source | 40-60 V |
| Power | 20 VA Max |
| Environment | |
| Temperature | 0° - 50°ะก |
| Humidity | 0 to 80 %, non-condensing |
Typical transmittion range on 26 AWG (0.4 mm) cable
| Line Rate | 272 kbps | 784 kbps | 2064 kbps |
| Payload Rate | 256 kbps | 768 kbps | 2048 kbps |
| Reach 26 AWG | 7.6 km | 5.4 km | 4.4 km |
User's Manual for model QLink-3000/B-E1 in Russian
User's Manual for model QLink-3000/B-ETV in Russian
MIB-files for SNMP-management
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