
HOST INTERFACES AND CABLE PINOUTS 2 - 53
Connector Pins
RS-232 AUX 1
Scale Display Port
Table 2-10
RJ-45
Pin # Signal/Name Direction Description
1 N/C N/A No Connection
2 5V Out
RS-232 scanner 5VDC Supply
*
3 GND N/A Signal Ground
4 TXD Out Serial TXD (±5.4V)
5 RXD In Serial RXD (±5.4V)
6 RTS Out Serial RTS (±5.4V)
7 CTS In Serial CTS (±5.4V)
8
(GEN II
on
ly)
Scale LED In Indicates price computational scale
has returned to
zero - reflected in UI Scale Status LED (if enabled). I/O
signals are 5V TTL.
9
(GEN II
on
ly)
Scale Zero Out Zeros price computational scale when the Zer
o UI
button is pressed (if enabled). I/O signals are 5V TTL.
10
(GEN II
on
ly)
12V/150mA Out Power output for price computational scale.
Table 2-11
RJ-11, Scale Display
Pin # Signal/Name Direction Description
1 DEBUG_TXD Out Debug serial TX
2 5V Out
Auxiliary 5V output
*
3 TXD Out Scale Display serial TX (3.3V TTL)
4 RXD In Scale Display serial RX (3.3V TTL)
5 GND N/A Signal ground
6 DEBUG_RXD In
Debug serial RX
* The total combined current for the USB and RS-232 peripheral ports should be less than
750mA total auxiliary current. Each individual port should not exceed 500mA.
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