62 Eaton 93PM Integrated Accessory Cabinet-Tie (50 kW and 100 kW IAC-T) Installation and Operation Manual P-164000371—Rev 05Table 19. IAC-T MOB and Pull Chain Interface Terminals (Continued)IAC-TTerminal Name UPS Terminal DescriptionTB1-18 MOB 4 Aux #1COM UPS 4 Building Alarm ReturnTB1-19 MOB 4 Aux #2 NO UPS 4 Pull Chain – Terminal 1 Output: UPS 4 Pull Chain – Backup control for paralleloperationTB1-20 Pull Chain Common UPS 4 Pull Chain Return –Terminal 2 Output: UPS 4 Pull Chain CommonNOTEUPS building alarm signals are customer programmable. Customer interface wiring for the IAC-T MOBs assumes that theUPS Building Alarm is programmed to monitor Normally Closed (NC) contacts.Any pair of unused UPS building alarm terminals may be used for the MOB interface connections.“Return“ indicates connection to electronics circuit ground. “Common” indicates connection to common side of isolatedrelay contactTable 20. IAC-T MOB, MBP, and Pull Chain Interface TerminalsIAC-TTerminal Name UPS Terminal DescriptionTB1-1 MOB 1 Aux #2COM —Jumper terminal for MOB 1, MOB 2, MOB 3, and MOB4 Aux2 common connections.TB1-2 MOB 2 Aux #2COM—TB1-3 MOB 3 Aux #2COM —TB1-4 MOB 4 Aux #2COM —TB1-5 MOB 1 Aux #1 NC UPS 1 Building Alarm Output: Normally Closed (NC) contact used to indicatewhether MOB 1 is open. Contacts are closed when MOB 1isopen.TB1-6 MOB 1 Aux #1COM UPS 1 Building Alarm ReturnTB1-7 MOB 1 Aux #2 NO UPS 1 Pull Chain – Terminal1Output: UPS 1 Pull Chain – Backup control for paralleloperationTB1-8 Pull ChainCommonUPS 1 Pull Chain Return –Terminal 2 Output: UPS 1 Pull Chain CommonTB1-9 MOB 2 Aux #1 NC UPS 2 Building Alarm Output: Normally Closed (NC) contact used to indicatewhether MOB 2 is open. Contacts are closed when MOB 2is open.TB1-10 MOB 2 Aux #1COM UPS 2 Building Alarm ReturnTB1-11 MOB 2 Aux #2 NO UPS 2 Pull Chain – Terminal1Output: UPS 2 Pull Chain – Backup control for paralleloperationTB1-12 Pull ChainCommonUPS 2 Pull Chain Return –Terminal 2 Output: UPS 2Pull Chain CommonInstallation