|  
 | Modem-multiplexer QLink-3000/S
 SpecificationsTypical transmittion  range on 26 AWG (0.4 mm) cable
 Documentation
 
  |  | Features: 
     Up to 10 km over single copper pair
     Line data rates from 208 to 2320 kbit/sec
     Data rates from 64 to 2304 kbit/sec
     Line code TC-PAM
     Line protection
     Two data ports (one is always E1, another - E1 or Ethernet 10/100BaseT)
     Local and remote loopbacks
     Integrated BER tester
     Console RS-232 port
     SNMP Ethernet control port
     Dry contacts alarm interface
     Rack-mount 1U
     AC or DC power
      Declaration of compliance D-MDPD-8906   |  
  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
(without a repeater) 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 multiplexer 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 through Ethernet port (SNMP protocol).
  The device has an upgradeable firmware.
    Currently available models are listed in Prices. Please, contact technical support if you are unsure which model to choose.
 Specifications 
| Line Interface | 
|---|
 
	      | Line | Copper twisted pair |  
	      | Line Rate | 208 - 2320 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 |  | Interface Ethernet | 
|---|
 
	      | Interface | 100Base-T |  
	      | Connector Type | RJ-45 (female) |  
	      | Data rate | 64 - 2304 kbit/sec |  
	      | 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 | 9 pin DB9 female |  
	      | Relay Contact Current | Up to 600 mA |  
	      | Relay Contact Voltage | Up to 110 VDC / 125 VAC |  | 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 | Rack mount 19" 1U |  
	      | Dimensions | 444 mm x 262 mm x 44 mm |  
	      | Weight | 3400 g |  | Power source | 
|---|
 
	      | AC power source | 176-264 V, 50 Hz |  
	      | DC power source | 36-72 V |  
	      | Power | 12.5 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 | 2320 kbps |  
	      | Payload Rate | 256 kbps | 768 kbps | 2304 kbps |  
	      | Reach 26 AWG | 7.6 km | 5.4 km | 4.0 km |  
Documentation Some of the documents are in Adobe® Acrobat® Reader® format
   User's Manual for models Qlink-3000/S-2E1-SNMP and Qlink-3000/S-E1-ETV-SNMP in Russian 
  User's Manual for models Qlink-3000/S-2E1-SNMP and Qlink-3000/S-E1-ETV-SNMP in English 
  MIB-files for SNMP-management 
 
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