17
TTL-232
The table below describes the pin functions of FPC connector used as TTL-232 interface.
PIN# Signal Name
I/O
Function
1
232INV
O
Output: High = TTL-232 interface; Low = USB interface
2
VIN
-
Power: supply voltage input
3
GND
-
Ground: power and signal ground
4
RXD
I
Input: TTL level RS-232 receive data
5
TXD
O
Output: TTL level RS-232 transmit data
6
nCTS
I
Input: TTL level RS-232 clear to send
7
nRTS
O
Output: TTL level RS-232 request to send
8
PWRDWN
O
Output: Active high = scan engine is in sleep mode
9
nBEEPER
O,od
Output-Open Drain: Beeper output
10
nGoodRead
O,od
Output-Open Drain: Good read LED output
11
nWAKE
I
Input: Active low, wakes the engine from sleep mode
12
nTrig
I
Input: Active low, signal used as trigger input to activate the
engine to start a scan and decode session
Summary of Contents for EM2039 Series
Page 1: ...EM2039 Series OEM Scan Engine Integration Guide ...
Page 3: ...Revision History Version Description Date V1 0 0 Initial release May 21 2013 ...
Page 6: ......
Page 13: ...7 Illumination Aiming Fig 2 3 Fig 2 4 ...
Page 16: ...10 Bottom View Fig 2 8 Top View Fig 2 9 ...
Page 17: ...11 Imager Discrete Type unit mm Front View Fig 2 10 Bottom View Fig 2 11 Top View Fig 2 12 ...
Page 18: ...12 Right View Fig 2 13 Decoder Board Discrete Type unit mm Front View Fig 2 14 ...
