Grass Valley Thunder 80 v.1.0 - Manual (Page 41)

25
Thunder
User Guide
The four data channels can be configured individually to use any of the supported formats,
by using the appropriate Format Select pin (21, 23, 24, 26) as identified in the table.
Format Select pin: Floating for RS-422 or TTL
Tied to any GND pin for RS-232
Tied to +12 VDC bias (pin #10) for RS-485
C - GPI Bolt Card Connector
The GPI Bolt card, which supports eight GPIs, uses a DB26HD connector (also called DA26).
Ground 22 GND (data 3/4)
Format bias 10 Format bias +12 VDC
Function Pin # Signal
GPI 1
1 GPI 1 - IN
11 GPI 1 - OUT A
19 GPI 1 - OUT B
GPI 2
2 GPI 2 - IN
12 GPI 2 - OUT A
20 GPI 2 - OUT B
GPI 3
3 GPI 3 - IN
13 GPI 3 - OUT A
21 GPI 3 - OUT B
Function Pin # Signal