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Installing the Tracer™ MP503 Input/Output Module
Ordering number: 4950 0490, 4950 0590
Product overview
The Tracer MP503 input/output (I/O) module is a
field-installed device used to monitor inputs and
control binary outputs. The I/O module has four
universal inputs that can be configured as binary,
thermistor, 0–20 mA, or 0–10 Vdc. It also has four
binary outputs.
The Tracer MP503 is available in two different
versions: frame-mount (4950 0490) and metal
enclosure (4950 0590) (see Figure 1 and Figure 2 on
page 2).
The frame-mount package contains:
• A Tracer MP503 circuit board fastened to a metal
back plate
• A removable molded resin cover
The metal-enclosure package contains:
• A Tracer MP503 circuit board fastened to the back
plate of the metal enclosure
• A removable metal cover
Shipment
Visually inspect all parts for obvious defects or
damage. All components are thoroughly inspected
before leaving the factory. Any claims for damage
incurred in shipping should be filed with the carrier.
Storage environment
The storage environment must meet the following
requirements:
• Temperature: -40°F to 185°F (-40°C to 85°C)
• Relative humidity: 5
–
95%, noncondensing
Operating environment
Make sure that the operating environment conforms
to the specifications listed in Table 1. Dimensions
and clearances are illustrated in Figure 1 and
Figure 2 on page 2.
Location
Trane recommends locating the Tracer
MP503 I/O module:
• In an indoor environment for protection from the
elements
• Where public access is restricted to minimize the
possibility of tampering or vandalism
• Near the controlled equipment to reduce wiring
costs
• Where it is easily accessible for service personnel
Table 1. Operating environment specifications
Te m p e r a t u r e From -40°F to 158°F (-40°C to 70°C)
Humidity 5–95%, noncondensing
Power
20–30 Vac (24 Vac nominal), 50–60 Hz
10 VA per I/O module plus a maximum
of 12 VA per binary output used
Mounting
weight (frame-
mount)
Mounting surface must be able to
support 4 lb (2 kg)
Mounting
weight (metal
enclosure)
Mounting surface must be able to
support 16 lb (7.5 kg)
Altitude 6,500 ft (2,000 m) maximum
Installation Category 3
Pollution Degree 2
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