2.10 DIGITAL COMBO Card

The Digital Combo card consists of 4 BRI ports and 4 DVL ports used for the connection of the digital telephone sets.

• The specifications and characteristics of the ports match the specifications and characteristics of the card itself.
• If you desire to use the BRI port for synchronisation purposes, no line card position may be skipped between this card and the SWITCH card.
• The card is installed into the line card position of the basic module.

The set-up of the Jumpers on the board determines the NT or TE port type

• NT

  • Pins 1–2, 3–4, 5–6, 7–8 and power supply pins to be connected 

• NT without power supply

  • Connect pins 1–2, 3–4, 5–6, 7–8 and do not connect the power supply pins 

• TE

  • Connect pins 1–3, 2–4, 5–7, 6–8 and do not connect the power supply pins 

4x DVL port

• Interface type – Upn (NT–U), LAP–S with 48 V power supply 
• Protocol – Cornet II
• RJ45 Connection – two conductors, Pin4 and Pin5 = broadcasting/ reception

4x BRI port

• Interface type
  • S0 (NT-S/T, LT-T ) with phantom power supply – 42 V
  • S0 (TE-S/T, LT-S ) without power supply
• Protocol – DSS1 – EURO ISDN
• Connection – RJ-45 – four conductors
• Pin3, Pin6 = broadcasting couple
• Pin4, Pin5 = reception couple