Intermec ED40 - Connecting the ED40 to the Host; RS-232 Interface

Chapter 3 — Electrical Integration
14 ED40 Decode Board Integration Guide
Connecting the ED40 to the Host
ED40 supports an RS-232 interface or a USB interface.
RS-232 Interface
The RS-232 TTL interface has standard baud rates from 460800 to 75. It supports
ISCP protocol for data output, imager control, and configuration (raw data and
encapsulated data modes supported).
These connections allow for normal operation and firmware download.
Connecting the ED40 Decode Board to the Host with an RS-232 Connection
RS-232 Operating Mode Trig ger Detect In 1 Detect In 0
Normal operation x 1 0
Firmware download 1 1 1
ED40
HOST
1
2
3
4
5
6
7
8
9
10
11
12
RXD
Trigger
Power enable
TXD
RTS
GND
Detect in 1
LED
CTS
Buzzer
Detect in 0
Vcc
trigger on
Vcc
trigger o/
firmware download
Vcc
Vcc
normal operation
firmware download
Note: If you are using the EA15 legacy connections from an earlier design, the
ED40 is not compatible. See the EA15 Integration Guide for more information.