TransCore 05531 User Manual
Developing the Site Plan
2-21
Electrical Power
A dedicated electrical power supply must be present at the site and available to the
Encompass 4/4800 Multiprotocol Reader at all times. The power must be 16-20V AC
or 16-28V DC. A step-down transformer is available (North America only) to convert
a 120V AC duplex wall outlet with ground to 18V AC, as is a step-up transformer to
convert a low-voltage 12V AC outlet to 18V AC. Consult your local and national elec-
trical codes for installation and safety requirements.
Encompass 4/4800 Multiprotocol Reader at all times. The power must be 16-20V AC
or 16-28V DC. A step-down transformer is available (North America only) to convert
a 120V AC duplex wall outlet with ground to 18V AC, as is a step-up transformer to
convert a low-voltage 12V AC outlet to 18V AC. Consult your local and national elec-
trical codes for installation and safety requirements.
Note: Encompass 4/4800 Multiprotocol Readers installed outside North America
require a locally supplied transformer.
require a locally supplied transformer.
If 18V AC or 18V DC power is available, the transformer option is unnecessary.
TransCore offers a Class C transformer accessory kit (part number 76-1620-005) for
sites where 110V AC is available. It is the installer’s responsibility to supply conver-
sion equipment and wiring for other voltages. Table 2-2 contains power supply current
requirements.
sites where 110V AC is available. It is the installer’s responsibility to supply conver-
sion equipment and wiring for other voltages. Table 2-2 contains power supply current
requirements.
Power circuits are protected internally against power surges.
Power Extension
Use
to determine the correct cable size according to the American Wire
Gauge (AWG) standard for the necessary length of extension cable. The numbers in
the first row of the table indicate cable size for the approximate cable length.
the first row of the table indicate cable size for the approximate cable length.
Note: If the cable is close to the maximum length, measure voltage at the Encompass
4/4800 Multiprotocol Reader with RF ON to ensure voltage does not drop below 16V.
A drop in voltage below 16V causes a reduction in read range and possible damage to
internal electronics as well as unreliable operation.
4/4800 Multiprotocol Reader with RF ON to ensure voltage does not drop below 16V.
A drop in voltage below 16V causes a reduction in read range and possible damage to
internal electronics as well as unreliable operation.
20-1620-003
Connector kit only
56-1620-004
13-pair cable (sold by the foot)
76-1620-005
110V AC to 18V AC Class C transformer
76-1620-006
12V AC to 18V AC step-up transformer
Table 2-2 Power Supply Current Requirements
Supply
(RF On)
Worst Case
Maximum Current at
68°F (20°C)
(RF Off)
Standby Operating
Current at 68°F
(20°C)
16 to 20V AC
1.7 A at 18V AC
1 A at 18V AC
16 to 28V DC
1.7 A at 18V DC
1 A at 18V DC
Table 2-1 Connector Cabling Accessory Kits (continued)
Part Number
Description