User Manual

AS4000 Subscriber Terminal
Installation and Commissioning DLP 011
605-0000-436
Issue 1.5 Date: 18th October 1999
Page 2 of 8
Table 14. CRU Connector Pin Termination
Pin Function Limits Description Colour
5 Pair
25/80 metre drop
6 Pair
80 metre drop
1 0V 0V Monitor Breakout Unused Black (thin)
2 AGC Mon +1V to +5V Monitor Breakout Green Green
3 PC Mon +1V to +5V Monitor Breakout Brown Brown
4 +24V DC 20-42VDC DC +ve Supply Red Red (thick multistrand)
5 0V DC 0V DC -ve Supply Black Black (thick multistrand)
6 Down Link
Comms
Data:
+/- 10V
System Data - RS232
Transmit
Yellow Yellow
7 Up Link
Comms
Data:
+/- 10V
System Data - RS232
Receive
Grey Grey
8 SRX+ ISDN Receive Violet Violet
9 SRX- ISDN Receive Orange Orange
10 STX+ ISDN Transmit Blue Blue
11 STX- ISDN Transmit White White
0V (Chassis
Earth)
0V Drain /Screen
(Monitor)
Tinned Tinned Drain Wire
Five Pair Drop Cable Termination at the PSU (Type 1 only)
1. At the Junction Box terminate the wires of the drop cable as shown in Figure 33.
JACK
SOCKET
1
2
3
4
5
6
12
11
10
9
8
7
Drop Cable
from CRU
DC Output
Cable from
AC PSU
To
STMON
Terminal
1
2
3
4
5
6
7
8
9
10
11
12
Function
System Data - Up
System Data - Down
Ground
V+; 24 Volts
Ground
0 volts
STX+
Not Connected
SRX-
SRX+
Ground
Colour
Grey
Yellow
Red
Black
White
Blue
Orange
Violet
Screen
STX-
Cable to
NTU
Figure 33. Junction Box Termination (Type 1 PSU)