1
Fig. 1
1. Product description
The SAP 20 is a power supply unit suitable for an E-Bus and
has an output voltage of 12 V at a maximum of 2.3 A. The
housing offers space for 7 type SMT 11 (transponder) or SMR
11 (isolator/amplifi er) circuit boards and for a 12 V, 24 Ah
battery. At least one SMT 11 must be fi tted to use the cover
tamper contact.
2. Supply package
The SAP 20 UK package contains the following:
- One SAP 20 power supply unit.
- One set (4 off) of spacers.
- One SLP 20 UK language kit complete with :
- Installation instructions.
- One wiring diagram.
3. Mounting instructions
The SAP 20 external power supply unit is designed for moun-
ting in dry indoor rooms. It must not be exposed to dripping
or splashing water.
3.1 Open cover (Fig. 1)
1 - Slacken cover screw
W
.
2 - Remove cover.
3.2 Product overview (Fig. 1)
- Housing
E
.
- Power supply assembly circuit board SMP 20
I
.
- Transformer SMU 31
U
.
- Mains supply terminals
T
with fuse.
- Eye
O
for sealing.
- Tamper contact
P
.
- Cable inlet
Y
.
- Mounting holes for SMT 11 or SMR 11 circuit boards
(optional)
Q
.
- Space for battery
R
.
- Cover screws
W
.
8AA10427 - F0 - 09/04/2003 - UK -
SNR 557773.0-001
s
Installation instructions
External power supply unit
SAP 20
SLP 20 UK
20 800 225.0-010
