MPR-1510 3.2x
- 9 -
Doc# 041313
AWID PROPRIETARY
power supply line will require larger gauge wires. PG I/O output are standard access
industry Wiegand drivers, which is capable of 500 feet driving distance.
TABLE 3.4-1: Data Line s Wiring Requirement
WIRE SIZE
#22 AWG (0.6 mm Dia.)
#24 AWG (0.5 mm Dia.)
RS-232
50 ft (15 meters)
50 ft (15 meters)
3.5 GROUNDING
Grounding is critical for proper operation of MPR-1510. When installing the readers, it is
crucial to assure that the earth ground is the best ground available. If you elect to use
the 120 VAC power ground, conduct a test by measuring its resistance relative to a
known good ground, such as a cold water pipe or structural steel that is in direct contact
with the ground. The resistance should be less than 50 ohms.
3.6 WIRING DIAGRAMS
See section 2.1 for pin assignment for the RS-232 connector of an MPR-1510 3.2x.
The MPR RS-232 interface is a short distance serial interface, a full command set for
the standard serial interface is not necessary, therefore only transmit, receive and
ground wires are used. Sense input is an enable input, which is traditionally used to
activate the RF energy of the reader and to start the read functions.
