TransCore 05531 User Manual
Commands
7-35
Command #6400 disables RF-by-input control command #641 Select RF-by-Input
Control.
Control.
Reader response:
Done
641 Select RF-by-Input Control (Factory Default)
Command #641 configures the reader for RF-by-input control. The reader automati-
cally turns on RF when it detects a presence through sense0. The reader turns off RF
according to the selected RF control algorithm (#692N Select RF Control Algorithm).
cally turns on RF when it detects a presence through sense0. The reader turns off RF
according to the selected RF control algorithm (#692N Select RF Control Algorithm).
Reader response:
Done
642NN Select RF Operating Frequency
Command #642NN sets the reader RF frequency from 902 to 928 MHz in 500-kHz
steps, where NN is a hexadecimal value from 01 to 34. After the reader’s frequency is
set, the value is stored in non-volatile RAM (NVRAM). This value is not altered by
power-down. It can be changed by issuing command #642NN, loading default param-
eters, or a flash download of new software.
steps, where NN is a hexadecimal value from 01 to 34. After the reader’s frequency is
set, the value is stored in non-volatile RAM (NVRAM). This value is not altered by
power-down. It can be changed by issuing command #642NN, loading default param-
eters, or a flash download of new software.
Caution
The authorized frequency band for the TransCore Encompass 4/4800 Multiprotocol
Reader in the United States is 912.5 to 919 MHz. Contact TransCore if your applica-
tion requires a frequency outside of this range.
Reader in the United States is 912.5 to 919 MHz. Contact TransCore if your applica-
tion requires a frequency outside of this range.
If the NVRAM becomes corrupted, the correct operating frequency cannot be guaran-
teed. In this circumstance, the RF section shuts down and the reader sends an
Error
teed. In this circumstance, the RF section shuts down and the reader sends an
Error
06 message to the host. Until the frequency is reset using command #642NN,
the unit displays the same error message every time it is powered up or if an attempt is
made to enable the RF by host or by external sensor.
made to enable the RF by host or by external sensor.
Table 7-13 RF Control Commands
Command
RF Power
6400
Turns off RF channel
6402*
Turns on continuous wave RF until
command 6400 or 641 is received by
the reader.
command 6400 or 641 is received by
the reader.