Ericsson BDV BS 101 01 - Page 14

15(46)
Date Rev
DocumentnumberPrepared
Doc respons/Approved Checked Reference
1998-05-29
L
1531-BDV BS 101 01 Uen
INSTALLATION INSTRUCTION
Subject responsible
6.7 BTU-B (ROF 157 5121/_)
Applies for indices 1 and 3
The BTU-B provides connection for up to 8 physical
links and every physical link can be configured as a S-
or T-interface. On the S-interface every link provides
remote power feeding with 40V/50 mA = 2W and con-
nection for up to 8 terminals.
6.8 BTU-B2 (ROF 157 5121/_)
Applies for indices 4 and 5
DIP-switches position 410-417
These switches control S- and T-interface termination
and S-interface power feeding on the link 0...7.
ON
410 411
ON
414 415
412 413
416 417
418
ON
ON
ON
ON
ON ON
ON
A
B
C
D
Insert PROM "RYS 102 521/ 1
A
B
Insert PROM "RYS 102 521/ 2
Insert PROM "RYS 102 521/ 3
C
D
Insert PROM "RYS 102 521/4
418
410 411
414 415
412 413
416 417
A
B
Insert PROM "RYS 102 521/ 3
A
B
Insert PROM "RYS 102 521/ 4
On factory delivery all
switches are set to OFF
Connects 100 Ω send side termination
Connects power feeding ground
Connects -40V for power feeding
Connects 100 Ω receive side termination
ON
3
21
4