Rev B2
Page 10 of 11
1.4.3.3 Rex (Request to Exit) Inputs
The request to exit inputs (RX1 and RX2) are VOLT-FREE (dry) contacts located on
connector P1 as shown in Figure 5. No external voltage is either required or desired.
To use either Rex input, connect the COM (between RX1 and RX2 of connector P1) to
one side of the external relay’s contact being used to request exit, then connect either
RX1 or RX2 to the other side of the relay contact as desired. Figure 5 refers.
WARNING – Rex Inputs
Connecting an external voltage source to either Rex input will cause damage and
void the warranty.
1.4.3.4 Relays
Relays are connected to terminals on connector P1A. Both normally open (NO) and
normally closed (NC) contacts are available for both relays without the need for board
configuration.
WARNING – Relay Contacts Maximum Ratings are 2A @ 24 Volts AC or DC
Failure to comply with the maximum ratings shown for relays will cause damage
and void the warranty.
1.4.4 Option Cards
Three separate option cards can be added to the TEC1A:
Multiple Unit Interface (MUI) Card
Comm Board
2-Reader Board
The instructions for installation of each of these can be found on the SES website
www.selectses.com or with the individual card packages when ordered.
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