GRYPHON™
138
5.1.2
ACK/NACK Protocol
GRYPHON™ D Series Readers
This parameter sets a transmission protocol in which the Host responds to the reader
after every code transmitted. The Host sends an ACK character (06 HEX) in the case
of good reception or the NACK character (15 HEX) requesting re-transmission, in the
case of bad reception.
Gryphon
™
D
Host
ACK or NACK
data
cable
ACK/NACK enabled
If the reader does not receive an ACK or NACK, transmission is ended after the RX
Timeout (see par. 5.1.4).
Selection of the ACK/NACK protocol temporarily disables FIFO buffering see
par. 5.1.3.
GRYPHON™ M Series Readers
The transmission protocol takes place between reader, cradle and Host. The reader
passes its data (code read) to the cradle which sends it to the Host.
In the following descriptions the completed transmission is indicated by the Beeper
Control for Radio Response parameter with its default setting to Normal, see par.
5.8.3.
When ACK/NACK is disabled, there is no control from cradle to Host transmission,
the reader responds with the good reception tone.
Host
data
cable
GRYPHON
™
M
data
good RX
beep
OM-GRYPHON™
ACK/NACK disabled
Summary of Contents for GRYPHON
Page 12: ...GRYPHON 4 2 3 RS232 CONNECTION 2 4 USB ...
Page 13: ...INSTALLATION 5 2 5 IBM USB POS 2 6 WEDGE CONNECTION ...
Page 14: ...GRYPHON 6 2 7 PEN EMULATION CONNECTION ...
Page 67: ...59 ...
Page 76: ...Enter Configuration Exit and Save Configuration Ì Î DATA FORMAT Ì Î 68 ...
Page 86: ...Enter Configuration Exit and Save Configuration Ì Î POWER SAVE Ì Î 78 ...
Page 98: ...90 ...
Page 120: ...Enter Configuration Exit and Save Configuration Ì Î CODE SELECTION Ì Î 112 ...
Page 138: ...Exit and Save Configuration ADVANCED FORMATTING Ì Î 130 end Format 4 definition ÌHM3uÎ ...