TransCore 05531 User Manual

Both the RS

–

232 and RS

–

422 configurations used by the Encompass 4/4800 Multi-

protocol Reader have two sense output circuits – sense output0 and sense output1. 

By default, the Encompass 4/4800 Multiprotocol Reader operates in predefined output 
mode where sense output0 and sense output1 are asserted every time a unique valid 
tag is read. Both sense output devices are asserted by issuing command #621 Pre-
defined Output Control. The devices are not asserted when tags are acquired in the 
transmit all or buffer all ID mode or when the Encompass 4/4800 Multiprotocol 
Reader is operating in Wiegand mode. The sense output pulse duration is variable 
(command #67N).

The host computer can disable the predefined sense output control by issuing com-
mand #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, or #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 #621Predefined Output Mode to return to the pre-
defined mode.

The Encompass 4/4800 Multiprotocol 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 4/4800 Multiproto-

col Reader maintains the following three sets of parameters that affect serial port com-
munications:

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 issu-
ing commands with the host computer. Use the following procedures to set serial port 
communications parameters using the terminal emulation program.

Use this procedure to set port configuration parameters using the terminal emulation 
program. Consult sections 

" through 

.