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360.854.9559
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866.783.1742
10
SRC-32 Installation and Operation Manual
INSTALLATION
Input jumper configuration:
The SRC-32’s inputs may be configured for one of three operations:
1 – Optically isolated wet source (5 to 24 vdc)
2 - Optically isolated dry (5-volt source)
3 - CMOS/TTL 5-volt compatible input
Relay jumper configuration:
The SRC-32’s relays may be configured for normally open or normally closed con-
tacts. The SRC-32 is shipped configured for normally open contacts. To configure
for normally closed contacts, move the jumper from the NOx position to the NCx
position. x refers to the relay number. There are sixteen relays installed in the SRC-
32. These jumpers are located between the relays and front panel connectors.
It is recommended that all cables connected to the SRC-32 should be looped through
ferrite cores to suppress RF. Surge protection with RF filtering such as the Tripp
Lite “ISOBAR 4” is also suggested for the power transformer. The purchase of an
inexpensive uninterruptible power supply (UPS) will provide back up in case of
power outages. Check out our web site for lightning protection links.
WEBSITE:
Visit our web site for
product updates and
additional information
F
Fuunnccttiioonn
““ A
A””
IInnppuutt
““ B
B””
IInnppuutt
““ A
A””
jjuum
mppeerr
““ A
A””
jjuum
mppeerr
““ B
B””
JJuum
mppeerr
Optically
Isolated ddrryy
ccoonnttaaccttss
Ground
Source side of
Opto-Isolator
(Cathode)
1 & 2
3 & 4
2 & 3
Optically
Isolated w
weett
ssoouurrccee
Anode of the
Opto-Isolator
(2.2K)
Cathode of
Opto-Isolator
2 & 3
N/C
2 & 3
TTL/CMOS
compatible
55-- vvoolltt llooggiicc
Ground
Logic input
with pull-up
1 & 2
3 & 4
1 & 2
CAUTION!
Installation of the
SRC-32 in high RF
environments should be
performed with care.
Shielded cable is sug-
gested for all control,
audio inputs and out-
puts. All shields should
be tied to the “CHAS-
SIS GROUND” termi-
nals. The station
ground should be con-
nected to the chassis
ground screw (CH1)
located near J13 as
viewed from the rear.
For lightning protec-
tion devices, check out
www.polyphaser.com
and www.itwlinx.com.
