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+
_
BLK
WHT
RED
+
_
BLK
WHT
RED
+
_
BLK
WHT
RED
+
_
BLK
WHT
RED
DPT1
DPT2
SPT1
SPT2
BLK
BLK
BLK
BLK
BLK
RED
RED
BRN
BRN
WHT
WHT
RES
RES
BLK
RED
4
5
TB3
WHT
WHT
WHT
WHT
RES
RES
7
8
10
11
13
14
10K OHM
1/2 WATT
5%
+
-
10K OHM
1/2 WATT
5%
+
-
10K OHM
1/2 WATT
5%
+
-
10K OHM
1/2 WATT
5%
+
-
16
17
PSIO NO. 1
TRANSDUCER ACCESSORY
J7
SUCTION GAS
TEMPERATURE
THERMISTOR
SUCTION GAS
TEMPERATURE
THERMISTOR
1
2
6
7
2
3
5
6
J7
PSIO NO. 2
CHANNEL 31
CHANNEL 32
LEGEND
DPT — Duct Pressure
Transducer
SPT — Suction Pressure
Transducer
TB — Terminal Block
Fig. 27 — Transducer/Thermistor
CCN NETWORK
LEVEL II
COMMUNICATIONS
BUS (COMM)
RED
GRN
BLK
COMM
1
2
3
PSIO
NO. 1
COMM 1
1
2
3
4
_
_
Fig. 28 — CCN Building Supervisor
22