V10/V7.5/V5/V3.5 Installation and Operation Manual Page 3-9Section 3 Operating Instructions Issue 3.5Table 3-3: Switching Power Supply Module (PA/IPA) - Controls and IndicatorsPANELMARKING DESCRIPTIONDC FAIL When turned on (red), indicates:- the switching power supply is in a fault condition because the outputvoltage is outside prescribed operating limits by more than 20%, or- the transmitter is in its RF Off state, or- the switching power supply’s ON/STANDBY switch is in theSTANDBY (down) position.AC OK When turned on (green), indicates the ac voltage is being applied and isan acceptable level.ON/STANDBY When set to ON (and a power supply inhibit is not being applied),enables the switching power supply module to provide the dc supplyvoltage (PA voltage) to its associated:RF power module:‘A’ through ‘H’ for V10 transmitters‘A’ through ‘C’ and ‘E’ through ‘G’ for V7.5 transmitters‘A’ through ‘D’ for V5 transmitters‘A’ through ‘C’ for V3.5 transmittersor IPA:module ‘A’ or ‘B’ for V10/V7.5 transmittersPA ‘A’ or ‘B’ for V5/V3.5 transmittersNOTES:For V10 transmitters, there are up to ten identical switching power supply modules. Prefix withU1 (IPA ‘A’), U2 (IPA ‘B’) or U3 through U10 (PA ‘A’ through PA ‘H’ respectively) as applicable.For V7.5 transmitters, there are up to eight identical switching power supply modules. Prefixwith U1 (IPA ‘A’), U2 (IPA ‘B’), U3 through U5 or U7 through U9 (PA ‘A’ through PA ‘C’ and PA‘E’ through ‘G’ respectively) as applicable.For V5 transmitters, there are up to six identical switching power supply modules. Prefix withU1 (IPA ‘A’), U2 (IPA ‘B’) or U3 through U6 (PA ‘A’ through PA ‘D’ respectively) as applicable.For V3.5 transmitters, there are up to five identical switching power supply modules. Prefix withU1 (IPA ‘A’), U2 (IPA ‘B’) or U3 through U5 (PA ‘A’ through PA ‘C’ respectively) as applicable.
