User Manual

AS4000 Subscriber Terminal
Installation and Commissioning DLP 011
605-0000-436
Issue 1.5 Date: 18th October 1999
Page 7 of 8
Drop Cable Termination at the PSU (Type 4A only)
3. At the PSU punch down the wires of the drop cable, to the IDC terminal blocks
(TB1 & TB2) using an Auto Trim Termination Tool and connect the DC and
screen to the Wago block. The table and figures below, illustrate the connections
of the drop cable to the connector blocks inside the PSU. If using 6 pair cut surplus
wire and strain relief wires at the butt
Terminal Function Colour
Type 4A
5 pair 6 pair
TB1 1 +24V DC Supply Red Thick Red
TB1 2a 0V DC-ve Supply Black Thick Black
TB1 2b 0V DC See Note 1
TB1 3 0V (Chassis Earth) (Monitor) Tinned Tinned
TB1 4 Up Link Comms System
Data - RS232 Transmit
Grey Grey
TB1 5 Down Link Comms System
Data - RS232 Receive
Yellow Yellow
TB1 6 PC Mon Monitor Breakout Green Green
TB1 7 AGC Mon Monitor Breakout Brown Brown
TB1 8 Not Used Thin Red
TB1 9 Not Used Thin Black
TB1 10 0V logic Ref Loop to TB1..11
TB1 11 0V to CRU Loop to TB1..10
TB2 5 STX- ISDN S-Bus Violet Violet
TB2 6 STX+ ISDN S-Bus Orange Orange
TB2 7 SRX- ISDN S-Bus Blue Blue
TB2 8 SRX+ ISDN S-Bus White White