Echo Network Voice/Data Multiplexer
Specification List

• Basic: Specify X.21 or V.35 interface
  


• Option 1: Drop and Insert
  


• Option 2: Additional n x 64kb/s
  Interface must be the same (X.21 or V.35) as base unit.
  


• Option 3: PCM to ADPCM compression
  


• Option 4: Router (only available for LANlink)
  

• Link Ports: Echo Mux and Echo LANlink, 1 or 2 E1 ports
• Compliance: G.703, G.704, I.431, G.823, PD 7024, CTR12, EN41003, EN60950, EN55022, EN50082-1, BABT, CE (EMC, LVD, TTE)
• Interface: G.703 75 ohm un-balanced (UK), 2 x BNC connectors (to PD7024) or G.703 120 ohm balanced (Europe), 8 way RJ45 connector (to CTR12)
• Data Rate: 2.048 Mb/s 50ppm referenced to Internal, Loop, External or Channels 1 to 4
• Transmission Modes: AMI/HDB3
• Statistics & Alarms: 24 Hour BERT / 15 minute intervals, 2 each major & minor alarm contacts

• Interface: Optional X.21/V.11 or V.35 configued as DCE
• Capacity: Echo Mux 2 or 4 channels, Echo LANlink 2 Channels
• Data Rates: Off, 64kb/s to 1984kb/s in 64kb/s steps
• Data Format: Synchronous Transport
• Control Signals: Indicate PERMANENT or ALARM CONTROLLED option
• Diagnostics: Bilateral Loopbacks, Underflow & Overflow Alarms

• Interface: V.24/V.28 configured to DCE 9.6Kbps async
• Note: The single port controls and configures the multiplexer and options

• Front Panel Indicators: Carrier, Major Alarm, Minor Alarm, Loop
• Dimensions: Echo Mux: 434mm x 290mm x 61mm, Echo LANlink: 434mm x 340mm x 61mm
• Weight: Echo Mux: approx 2.5Kg, Echo LANlink with Router and PCM/ADPCM compressor: approx 4.5Kg
• Environment: Operating 0-40°C, 0-90% humidity non-condensing
• Power Supply: Internal switched mode, 100 - 240V, AC , 50 - 60Hz, 48VDC option available

• Network Port Compliance: G.703, G.704, I.431, G.823, PD 7024, CTR12, EN41003, EN60950, EN55022, EN50082-1, BABT, CE (EMC, LVD, TTE)
• Interface: G.703 75ohm unbalanced (UK), 2 x BNC connectors (to PD 7024) or G.703 120ohm balanced (Europe), 8 way RJ45 connector (to CTR12)
• Data Rate: 2.048Mb/s +/- 50ppm referenced to Internal, Loop, External or channels 1 to 4
• Voice channel compression: Pairs of PCM coded 64kb/s time slots are compressed into the same number of ADPCM coded 64kb/s time slots

• Front Panel Indicators: LAN Transmit, LAN Receive, Collision, Fault
• Network connection: Internal via multiplexer
• LAN Connection: AUI, 15 way D type to Ethernet transceiver, RJ45 connector to UTP/STP cabling system
• Filtering Rate: 15000 minimum length packets per second
• Forwarding Rate: 3500pps at 1984kb/s (uncompressed)
• Management: Local terminal via 25 way D type connector, Telnet access SNMP traps using Get and Getnext
• IP Operation: Selection of Router, Bridge or disable Multiple IP networks on the Ethernet and routing between them
• Routing: RIP 1, RIP 2, Static routes
• IP Filtering: Selectable source and destination address, protocol and port filtering
• IPX Operation: Selection of Router, Bridge or disable Selection of Frame type, 802.2, 802.3 or Ethernet II with routing between frame types
• IPX Filtering: Option to disable RIP and SAP and entry of alternative static routes
• Other Protocols: IPX, RIP and SAP