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Modem Qlink-144
Discontinued, recommended replacement is: Qlink-3000
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Features:
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The Qlink family of leased line modems provides mid-speed data access over single-pair copper wires. It can transmit data with rates up to 144 kbps (without a repeater) for up to 8 km. Using lower guage copper wire may allow you to attain greater distances.
It can be configured using DIP switches or via RS-232 control port.
The modem has one main data port. The Qlink-144X has additional asynchronous interface, which can be used for control (console), or as extra data port. The main data port supports both synchronous and asynchronous modes. The data rate is: in synchronous mode - from 16 to 144 kbps, in asynchronous mode - from 1200 to 115200 bps.
The Qlink family contains also the model with Ethernet interface.
The modem has an upgradeable firmware.
The upgrading istructions are available here.
| Line Interface | |
|---|---|
| Line | Copper twisted pair |
| Loop Length | Up to 8 km over 24 Avg copper wire, up to 6 km over 26 Avg copper wire |
| Connector Type | RJ-45 (female 8 contacts) |
| Line Code | 2B1Q |
| Transmit Timing Sources | INT (Internal Oscillator) RCV (Receiver) EXT (Digital Interface) |
| Overvoltage Protection | TVS |
| Overcurrent Protection | Fuse |
| Digital interface | |
| Connector Type | V.35, M-34 female; or RS-232, DB-25 female; or RS-530, DB-25 female; or X.21, DB-15 female; or universal, HDB-44 female |
| Sync data rates | 144, 128, 80, 64, or 16 kbit/sec |
| Async data rates | 115200, 57600, 38400, 19200, 9600, 4800, 2400 or 1200 bit/sec (8 or 9 bit/symbol) |
| Clock Options | TXC, RXC, ETC |
| Modem Control Signals | DTR, DSR, CTS, RTS, CD |
| Ethernet interface | |
| Connector Type | RJ-45 (female) |
| Data rate | 144, 128, 80, 64, or 16 kbit/sec |
| Duplex mode | Half duplex or full duplex |
| Filtering rate | 15000 packets/sec |
| Address table size | 10000 MAC addresses |
| Control interface | |
| Connector Type | RS-232, DB-9 (female) |
| Protocol | Asynchronous, 9600 bit/sec, 8 bit/symbol, 1 stop bit, no parity |
| Extra features | Asynchronous data port, rate 115200, 57600, 38400, 19200, 9600, 4800, 2400 or 1200 bit/sec (8 or 9 bit/symbol) |
| Modem Control Signals | DTR, DSR, CTS, RTS, CD |
| Testing modes | |
| Loopbacks | Digital, local, remote |
| BER Tester | Built-in |
| Control | By switches on front panel or via control port RS-232 |
User's Manual for models Qlink-144/B-232 in Russian
User's Manual for models Qlink-144X/B-V in Russian
User's Manual for models Qlink-144X/B-M in Russian
User's Manual for models Qlink-144X/B-232 in Russian
User's Manual for models Qlink-144X/B-530 in Russian
User's Manual for model Qlink-115 in Russian
User's Manual for model Qlink-144/R-ETH in Russian
User's Manual for models Qlink-144/R-V, R-M, R-530, R-232, R-X21 in Russian
User's Manual for model Qlink-144/B-ETH in Russian
User's Manual for models Qlink-144X/B-ETH in Russian
User's Manual for models Qlink-144X/B-X21 in Russian
Справочник по интерфейсным кабелям Cronyx.
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