DSE Model 5520 Automatic Mains Failure Control and Instrumentation System Operators Manual
5520 OPERATING MANUAL ISSUE 1 04/02/05 AM
66
10.4 OUTPUT EXPANSION
There are several methods of output expansion available for the 5xxx module:-
10.4.1 RELAY OUTPUT EXPANSION (157)
An expansion module is available, which connects to the configuration socket and enables the
5xxx to use eight additional relays on the 157 relay module, providing Volt-free contacts for
customer connection. A maximum of 2 off 157 relay modules can be connected, there are
i
dent
i
f
i
ed
as
‘
A’
and
‘
B’
and
gi
ve
a
t
ot
al
of
16
ext
r
a
r
el
ay
out
put
s.
Refer to technical data sheet on the 157 relay module for further details.
10.4.2 LED OUTPUT EXPANSION (548)
An expansion module is available, which connects to the configuration socket and enables the
5xxx
t
o
use
ei
ght
addi
t
i
onal
LED’
s
on
t
he
548
modul
e,
pr
ovi
di
ng
r
emot
e
LED’
s
i
ndi
cat
i
on
up
t
o
50
met
r
es
away.
A
maxi
mum
of
2
of
f
548
LED
modul
es
can
be
connect
ed,
t
her
e
ar
e
i
dent
i
f
i
ed
as
‘
A’
and
‘
B’
and
gi
ve
a
t
ot
al
of
16
ext
r
a
LED
out
put
s.
It is possible to use a mix of 157 and 548 modules to give both relay and LED expansion if
required (Please refer to our Technical Support department for details.).
10.5 INPUT EXPANSION
It is possible to increase the number of monitored inputs available by utilising either :
DSE P130 input expansion
54x Protection Expansion/Annunciator.
Please refer to the relevant product documentation for further details.