User Manual

AS4000 Operations and Maintenance
Section
605-0000-431
4
. Issue 1.6. Date3/2/99
DLP-006
Page 26 of 44 © Copyright Airspan Communications Corporation 1999
0=0ff1=0n
8
7
6
5
4
3
2
1
O
N
0=0ff1=0n
8
7
6
5
4
3
2
1
O
N
75ohm In/Out
AC Input coupled
Output earthed
120ohm In/Out
Input floating
Output floating
Release 3 TUs
PCB Ref Switch Position
75 Ohm S1.2 s/c on 1
input S1.3 s/c on 1
120 Ohm
S1.2 o/c off 0
input
S1.3 s/c on 1
Input a/c S1.4 o/c off 0
earth S1.5 s/c on 1
Input earthed
S1.4 s/c on 1
S1.5 o/c off 0
Input floating
S1.4 o/c off 0
S1.5 o/c off 0
75 Ohm S1.1 o/c off 0
output S1.7 s/c on 1
S1.8 o/c off 0
120 Ohm
S1.7 o/c off 0
output
S1.8 s/c on 1
Output earthed S1.6 s/c on 1
Output
Floating
S1.6
o/c off 0
Figure 3-8. DIL Switch (Typical Settings)
7. Use the board extractor lever to remove the card from the shelf. Replace the card ensuring
that the card is located within the shelf card guides. Use the extractor lever to ensure that
the card locates properly. Observe full anti-static precautions.
8. Note: All LEDs will be illuminated for 2 s during module boot-up. After successful boot-
up, the TU Status LED will flash until the co-processor initialisation is complete.
STOP. THIS PROCEDURE HAS BEEN COMPLETED.