BCR PORT

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Pinout

Pin# Signal
1
2 DATA Input, 5v TTL, 0-5vdc
3
4
5 GND* N/C on TANDY 102 & 200. N/C on most wands.
6
7 GND
8
9 VCC +5vdc power output. Crashes machine if you draw more than 60-70ma.
Shell Plastic shell, N/C

BCR-to-USB power tap

https://github.com/bkw777/BCR_Breakout

Compatible Readers

Wand

Hewlett Packard HEDS-3000
Hewlett Packard HEDS-3050
Unitech MS100-NTCB00-SG (previously MS100A)
Unitech MS120-NTCB00-SG (previously MS120A)

Slot

Unitech MS146-ITCB00-SG (previously MS146A)

info

http://www.mh-aerotools.de/hp/bc-reader/index.htm
The pdf contains a full schematic of a wand.