P-164000477 9395P750 kVA / 900 kVA and 1000 kVA / 1100 kVA 76
Revision 002 User’s and Installation Guide
If MOB contacts have pigtail leads, use the same wire gauge to connect to the UPS and use the
correct crimp connections for the wire gauge.
External CAN connections between UPS cabinets require shielded twisted pair wire.
Use twisted pair wiring between the UPS and MOB AUX contacts.
Always confirm contact operation prior to wiring.
Table 5-4: Pull-Chain wiring terminations with MOBs
From To Function
UPS 1 CAN Bridge Card J3-1 (Alarm) MOB 1 Aux 1 NC MOB Open Alarm
UPS 1 CAN Bridge Card J3-2 (Alarm
Return)
MOB 1 Aux 1 Com
UPS 1 TB2-1 (Pull Chain) MOB 1 Aux 2 NO Pull Chain
UPS 1 TB2-2 (Pull Chain Common) UPS 2 TB2-2 (Pull Chain Common) Pull Chain Common
UPS 2 CAN Bridge Card J3-1 (Alarm) MOB 2 Aux 1 NC MOB Open Alarm
UPS 2 CAN Bridge Card J3-2 (Alarm
Return)
MOB 2 Aux 1 Com
UPS 2 TB2-1 (Pull Chain) MOB 2 Aux 2 NO Pull Chain
UPS 2 TB2-2 (Pull Chain Common) UPS 3 TB2-2 (Pull Chain Common) Pull Chain Common
UPS 3 CAN Bridge Card J3-1 (Alarm) MOB 3 Aux 1 NC MOB Open Alarm
UPS 3 CAN Bridge Card J3-2 (Alarm
Return)
MOB 3 Aux 1 Com
UPS 3 TB2-1 (Pull Chain) MOB 3 Aux 2 NO Pull Chain
UPS 3 TB2-2 (Pull Chain Common) UPS 4 TB2-2 (Pull Chain Common) Pull Chain Common
UPS 4 CAN Bridge Card J3-1 (Alarm) MOB 4 Aux 1 NC MOB Open Alarm
UPS 4 CAN Bridge Card J3-2 (Alarm
Return)
MOB 4 Aux 1 Com
UPS 4 TB2-1 (Pull Chain) MOB 4 Aux 2 NO Pull Chain
MOB 1 Aux 2 COM MOB 2 Aux 2 Com Pull Chain MOB Common
MOB 2 Aux 2 COM MOB 3 Aux 2 Com
MOB 3 Aux 2 COM MOB 4 Aux 2 Com