TP-6803 6/15
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Section 1 Installation
Cable (TB1--PWR and COM)
Maximum length per run, meters (ft.)
Number of Modules (RXT, APM, PIM, and/or load management device) per Run
1 Module
2 Modules
3 Modules
4 Modules
Belden #9402 or equivalent 20AWG
for indoor installations
46
(150)
15
(50)
5
(17)
Do not use 20AWG
for PWR and COM
Belden #1075A or equivalent 20AWG
for outdoor installations or buried
cables
46
(150)
15
(50)
5
(17)
Do not use 20AWG
for PWR and COM
14 AWG *
137
(450)
137
(450)
107
(350)
107
(350)
12 AWG *
137
(450)
137
(450)
137
(450)
137
(450)
* Use 12 or 14 AWG cable for PWR and COM connections only. For RBUS connections A and B, use shielded, twisted pair communication
cable specified above.
Figure 1-23
Total Cable Lengths for PWR and COM Connections
RXT*
3
COM
PWR
B
A
4
PIM
Load
Shed
Kit
Generator Set
COM
COM
PWR
COM
PWR
PWR
B
A
B
A
B
A
COM
PWR
B
A
COM
PWR
B
A
1. Generator set terminal block. See Figure 1-17 for location. Check the decal on the generator set for terminal block connections.
2. Connect one end of each cable shield to GROUND at the generator set.
3. Communication cable Belden #9402 or equivalent 20 AWG shielded, twisted-pair cable.
4. Connect shields together as shown.
5. Leave one end of each cable shield disconnected at the last device.
GND
Note:
Connect A to A, B to B, PWR to PWR, and COM to COM.
See Section 1.10.2, Cable Specifications.
* RXT transfer switch with standard or combined interface/ load management board.
Do not use a load shed kit with a combined interface board.
A
B
COM
PWR
3
4
RBUS
12 VDC
1
2
5
5
Figure 1-24
Accessory Module Communication Connection Details
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