WR-90 Point to Multi-Point Wireless Instruction Manual
10
Base Station Connections
To access the connectors for the base station, open the enclosure door. Signal connections are made to
removable screw terminal connectors.
Warning!
•
The WR-90 base station must be powered down completely
prior to installing or removing any modules. Failure to do so
could result in damage to the electronics.
•
Static electricity can damage sensitive components.
•
Observe safe handling precautions for static-sensitive
components.
•
Use proper grounding procedures/codes.
Figure 1 below shows the locations of screw terminal blocks on a fully loaded WR-90 base station
electronics board. This diagram shows the board loaded with four relay modules, four digital I/O modules,
four analog input modules, and four analog output modules. Actual module locations may differ.
Figure 1. Fully Loaded Base Station Main Board
I+
G I+
G
1
2
mA OUTPUT
+5 1 2 3 4 GND
DIGITAL I/O
V+ mA G
1
2
ANALOG INPUT
V+ mA G
NO NC C
1
2
RELAY
NO NC C
NONC
C
1
2
RELA
Y
NONC
C
V+m
AG
1
2
ANALO
G INPU
T
V+m
AG
+5
1
2
3
4GND
DIGITA
L I/O
I+
G
I+
G
1
2
mA
OUTPUT
NO NC C
1
2
RELAY
NO NC C
NONC
C
1
2
RELA
Y
NONC
C
V+ mA G
1
2
ANALOG INPUT
V+ mA G
V+m
AG
1
2
ANALO
G INPU
T
V+m
AG
I+
G I+
G
1
2
mA OUTPUT
+5 1 2 3 4 GND
DIGITAL I/O
+5
1
2
3
4GND
DIGITA
L I/O
I+
G
I+
G
1
2
mA
OUTPUT
MOD
AD
DR
016 RT
RS
SI
10
