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Chapter 6 Installing the EX2 expansion module
94 BAS-APG001-EN
The EX2 module has four binary outputs, four analog outputs, and six
universal inputs.
Universal inputs
Each of the six universal inputs may be configured as binary.
Binary outputs
The four binary outputs are form A (SPST) relay outputs. These relays
are not dry contacts; they switch 24 Vac. A pilot relay is required for any
application using dry contacts. Relays connected to the binary outputs on
the EX2 cannot exceed 6 VA or 0.25 A current draw at 24 Vac.
Analog outputs (UUKL nondedicated only)
Each of the four analog outputs may be configured as either of the
following:
• 0–10 Vdc
• 0–20 mA
Analog output and universal input
setup
Configure each analog output and universal input using a LonTalk
ser-
vice tool, such as Trane’s Rover service tool. The service tool requires the
Tracer MP581 software plug-in to configure an EX2. EX2 modules receive
their configuration information from the Tracer MP581 controller they
communicate with. You can do online configuration with the Rover ser
-
vice tool, or you can do offline configuration with Rover Configuration
Builder. In either case, the EX2 modules will not receive their configura
-
tion until they are communicating with a configured Tracer MP581 con-
troller.
The inputs are factory configured to be not used. Analog outputs are con-
figured for voltage. Figure 51 on page 95 shows how to wire some common
sensor types and output devices.