Trane Engineered Smoke Control System for Tracer Summit manual Installing the EX2 expansion module

Chapter 6

Installing the EX2 expansion module

The EX2 is a field-installed expansion module for the Tracer MP581 pro- grammable controller. Up to four EX2s with metal enclosure, model num- ber 4950 0523, can be connected to a Tracer MP581. Each EX2 adds the following inputs and outputs to a Tracer MP581:

•Six universal inputs

•Four binary outputs

•Four analog outputs

The enclosure package includes:

•EX2 circuit board fastened to the back piece of a metal enclosure

•Removable metal cover

Make sure that the operating environment conforms to the specifications listed in Table 22. Dimensions and clearances are illustrated in Figure 44 on page 86.

Table 22. Operating environment specifications

Temperature	From –40°F to 120°F (–40°C to 49°C)
Humidity	5–93%, non-condensing
Power	24 Vac, 50/60 Hz, 10 VA main board and 6 VA max per
	binary output
Mounting Weight	Mounting surface must be able to support 2 lb (1 kg)
(frame-mount)
Mounting Weight	Mounting surface must be able to support 8 lb (4 kg)
(metal enclosure)
Altitude	6,500 ft (2,000 m)
Installation	Category 3
Pollution	Degree 2

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