Reply to "Is 18 VAC too much for ASC2 relay power?"

JFC454OGR Forum Member DIGITAL SUBSCRIBER

CAPPilot posted:
JFC454(?),
You need to attach two different accessory transformers to the ASC2. The first one, set between 12-14 volts, powers only the ASC2 and is connected to the "AC Power" connections per page 14, Figure 9. I use the accessory output of a MTH Z-1000 brick for this (14 VAC).
A second transformer is needed to power the accessory or switch, with the ASC2 basically acting as an on/off switch in the accessory/switch circuit. Here the transformer is connected to the COMM input and goes out one of the switch output combinations (1T/1O, 2T/2O, 3T/3O, or 4T/4O). This is shown on page 30, Figure 22, for Atlas switches.
The relays in the ASC2 that control the accessory/switch are rated at 20 amps, so there should be no problem with using a PH180 to power the switches.

Thank you for that information. So that second transformer could be an unused throttle on a ZW-L instead of a PW180?

11/7/1811:35 PM

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