Connecting an Accessory to the Operator Alert Contacts

This function provides you with a set of external contacts that allow the hook-up of an alert signal of your choice.

The post accepts the following:

vStandard dual or single banana plugs

vLeads that are terminated with spade lugs

vStripped, bare wire leads.

The recommended voltage for the posts is 12 V dc, at a maximum current of 5 amps.

Note: There is an internal 5-amp fuse.

Voltage is not present at the binding post. You are responsible for supplying power to run any external device. The two contacts of the binding post are connected together with the closing of a relay contact. The relay turns on only when the operator alert lamp is operating during an error condition. To reset or turn off the relay, press the Check Reset switch on the Display Touch Screen window for the affected printer.

Chapter 6. Operator Responsibilities 101

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IBM 3000 manual Connecting an Accessory to the Operator Alert Contacts