Specifications

46
IMAGING ENGINE TERMINATIONS
Decode Board (TTL) Output to Host Connector
Figure 29.Decode Board (TTL) Output Connector
Pin Signal Name Function
1 232INV
Input: TTL RS232 polarity control with 68k ohm pull-up.
2
V
in
Power: Supply voltage input (3V to 5.5V)
3
GND Ground: Power and signal ground.
4
(n)RxD Input: TTL Level RS232 Receive data input.
5
(n)TxD Output: TTL Level RS232 transmit data.
6
(n)CTS Input: TTL level Clear to Send.
7
(n)RTS Output: TTL level RS232 Request to Send.
8
PWRDWN Output: active high = IS4920 is in power down mode.
9
nBEEPER Output: active low signal capable of sinking current.
10 nGoodRead
Output: active low signal for sinking current (Good Read).
11
nWAKE Input: Signal used to bring scanner out of power-down.
12
nTrig Input: Signal used as trigger input to activate the IS4920
Specifications are subject to change without notice.