Parallel Communication
Eaton 9355 UPS (20/30kVA) Installation and Operation Manual 164201626—Rev F www.eaton.com/powerquality 65
9. Install the CAN Bridge Card wiring between each UPS (see Figure 52 on page 67).
Use three wires of the four-wire twisted-pair wire. (Reserve two wires for pull-chain wiring in Step 11.) Be
sure to check correct polarity for Pins 8 and 9:
l
Connect SHIELD Pin 10 on all cards together.
l
Connect CAN H Pin 9 and CAN L Pin 8 (twisted pair) on all cards together.
10. Route the pull-chain wiring through the middle of the fan section and secure in the cable clips for each
UPS (see Figure 51).
Figure 51. Installing Communication Cables
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