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6.2.1 RS-232 Plug Connections
Signal connections to the RS-232 module plug are illustrated in Figure 6-2. Transmitted (TxD)
and received (RxD) signal direction is with respect to the Chloralert Plus.
6.2.2 RS-485 Plug Connections
Signal connections to the RS-485 module plug are illustrated in Figure 6-3. In the illustration, the
Chloralert Plus is shown wired as a “drop” or “node” (single instrument) on the datalink meaning
that additional instruments may also be connected. Two wires are therefore connected to each
lug: one set (T+, T-, R+, R=, SC) that comes from the previous node and another set that is con
nected to the next datalink node.
NOTE
Cable shield should be connected to ground at only one location.
Figure 6-2 RS 232 Plug Connections
DATA GENERATED
BY CONTROLLER
(RS-232 BA SIGNAL)
DATA RECEIVED
BY CONTROLLER
(RS-232 BB SIGNAL)
COMMON RETURN
(RS-232 AB SIGNAL)
N.C. TxD RxD N.C. COM
RS-232 PLUG
Figure 6-3 RS 485 Plug Connections
RS-485 PLUG
T+
T-
R+
R- SHD
= DATA GENERATED
BY CONTROLLER
= DATA RECEIVED
BY CONTROLLER
SHD = SHIELD
T+, T-
R+, R-
TO NEXT
NODE
FROM
PREVIOUS
NODE
Summary of Contents for Capital Controls CHLORALERT 17CA3000 Series
Page 14: ...325 6610 17 14 Figure 2 1 Receiver Outline Dimensions ...
Page 15: ... 15 325 6610 17 Figure 2 2 Sensor Transmitter Outline Dimensions ...
Page 16: ...325 6610 17 16 Figure 2 3 Interconnection Diagram ...
Page 18: ...325 6610 17 18 Figure 2 4 Sensor Wiring ...
Page 44: ...325 6610 17 44 ...