800.533.3794 | www.comcosystems.com 500169 Rev.18.0 pg. 6
Series
521A Teller Unit (TU) (P/N: 201194)
Switch Operating Instructions
ON/OFF
Power cycles the complete system (Inside Unit, Outside Unit &
Blowers). Power ON the system power light will be present.
Power OFF means complete system power down. If installed it
will power down the Customer Video Module (CVM).
SEND Sends a carrier to the customer unit.
RECALL Recalls a carrier from the customer unit.