Bulkhead signals (j3) – Measurement Computing BTH-1208LS-OEM User Manual
Page 26
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BTH-1208LS-OEM User's Guide
Specifications
26
Bulkhead signals (J3)
Table 26. Bulkhead signals
Pin
Signal name
Pin description
Pin
Signal name
Pin description
1
BATT+
Battery input positive
(2 AA/AAA cells)
2
BATT-
Battery input negative
3
BATT_MID
Battery center tap
4
GND
Ground
5
THERMISTOR+
10 k
Ω thermistor positive
(battery temperature sensing)
6
THERMISTOR-
10 k
Ω thermistor negative
7
PWR SW+
SPST contact 1 (power switch)
8
PWR SW-
SPST contact 2
9
PAIRING SW+
Momentary contact 1 (pairing /
soft power switch)
10
PAIRING SW-
Momentary contact 2
11
LED1+
LED1 anode
12
LED1-
LED1 cathode
13
LED2+
LED2 anode
14
LED2-
LED2 cathode
15
Vbus
USB 5 V supply (charging LED
anode)
16
CHARGE LED-
Charging LED cathode
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