Intermec 869 RFID Reader, Service Instructions Manual

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Theory of Operation Chapter
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2
10 869 RFID Reader Service Instruction Manual
Power Connector
The reader requires 8 to 10 volts DC at 2 amps.
The reader is powered through a 2-pin Bulkhead Barrel Connector,
Switchcraft part # 712A.
The Intermec power supply delivers 9 Volts DC at 2.4 Amps.
Mating plugs for this connector are Switchcraft part # 760, 760K or 761K.
A cable within the PSR connects the bulkhead barrel connector (via an
endplate switch) to the 2-pin Molex connector on the Intellitag Reader
Module.
869 Reader Module Power Considerations
The 869 Reader module uses the PSR case as a heat sink. The enclosure
used to house the modules provide sufficient thermal dissipation to keep
them within the specified operating temperature range.
The user must re-certify the product if the integration of the 869 Reader
Module uses a different power supply or antennas.
Antenna ports must have either antennas or termination loads connected
during operation. The Intermec part # for the termination load is
345-004-001.
Serial Communication
The 869 Serial Reader has a DB9 female connector for data communicaĆ
tion. The maximum data rate (and default) is 115.2K baud, with 8 data
bits, no parity bit and 1 stop bit.
The following table describes the pin-out of the RS-232 interface.
RS-232 Interface
Pinout Signal Direction Description
1 Reserved - Reserved
2 TXD (from reader) Output to host Serial data to host
3 RXD (from reader) Input from host Serial data from
host
4 Reserved - Reserved
5 GND N/A Ground
6 Reserved - Reserved
7 CTS (from reader) Input from host Clear to Send
8 RTS (from reader) Output to host Request to send
from host
9 Reserved - Reserved
The maximum distance from the product to a host, modem, or other
physical controller interface, such as a fiber optics converter or relay is
50-ft (15.2 m) for RS-232.