Preparing for Use
R&S
®
OSP
‑
B157W8
(PLUS)
R&S
®
OSP
‑
B157WX
16
Getting Started 1178.5808.02 ─ 03
15. Lay down the switch unit, with its open side facing upwards.
16. Unplug the CAN bus cable (W3) from connector X8 on the switch unit's main
board and from the CAN connector on the switch unit's rear panel.
17. Remove the CAN connector from the switch unit's rear panel.
18. If your switch unit is an R&S
OSP120:
● Unplug the LAN cable (W4) from the RJ45 connector on the processor
board and from the LAN connector on the switch unit's rear panel.
● Remove the LAN connector from the switch unit's rear panel.
19. Remove the cable holder of the CAN (and LAN) cable.
20. Remove the rear panel strut between slot A12 and slot A13.
21. Screw the rear plate of the module to the switch unit's rear panel (10 counter-
sunk screws, type Torx M2.5x8, included in the delivery;
of these screws).
22. Insert the guide cage into the switch unit's free space, with the protruding
) directed towards the switch unit's power supply
and control board, as in
.
Figure 3-1: Guide cage for holding the module in the switch unit
1 = 2 holes for accessing 2 screw hole positions below
2 = Protruding flange
3 = 3 screw holes
4 = Guiding structure elements, into which you slide the module in
23. Screw the guide cage to the switch unit's base plate (5 cylinder-head screws,
type Torx M2.5x6, included in the delivery), items (1) and (3) in
or
.
Mounting the Base Module