TransCore encompass 4, Руководство пользователя

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The host computer can disable the predefined sense output control by issuing command #6201 to turn
sense output0 on or by issuing any of the following commands:
• #6200
Turn Off Both Output Ports
• #6201
Turn Off Output0, On Output1
• #6202 Turn Off Output1, On Output0
• #6203 Turn On Both Output Ports
While under host control, the sense outputs are not automatically asserted when a valid tag is read. The
host must issue command
#621 Predefined Output Mode
to return to the pre-defined mode.
Serial Port Communications
The Encompass 4 Reader supports one communications port, which can be ordered as either RS
–
232/Wiegand or RS
–
422/Wiegand. For the RS
–
232 and RS
–
422 communications specifications,
the Encompass 4 Reader maintains the following three sets of parameters that affect serial port
communications:
• Port configuration parameters (baud rate, data bits, stop bits, parity)
• Communications protocols (basic, error correcting)
• Flow control scheme (none, software, hardware)
The default serial port configuration for each of these three parameters is as follows:
• 9600 baud, 8 data bits, 1 stop bit, no parity
• Basic communications protocol
• Software flow control (XON/XOFF)
You can change these parameters in data mode and command mode operation by issuing commands with
the host computer. Use the following procedures to set serial port communications parameters using the
terminal emulation program.
Port Configuration Parameters
Use this procedure to set port configuration parameters using the terminal emulation program. Consult
sections “100N Select Baud Rate” on page 7–89 through “00 Switch to Data Mode (Factory Default)” on
page 7–88 .
To set baud rate
1. Ensure that the host computer is in command mode.
2. Enter command
#100N
and press ENTER .
To set stop bits
1. Ensure that the host computer is in command mode.
2. Enter command
#101N
and press ENTER .
Encompass 4 Reader System Guide
TransCore Proprietary.
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