User`s guide

212
Chapter 4 Features and Functions
34907A Multifunction Module
Threshold
Jumper
Threshold Jumper Position: TTL AC
Refer to the diagrams on page 27 to connect wiring to the module.
Digital Input/Output:
Vin (L): < 0.8V (TTL
Vin (H): >2.0V (TTL)
Vout (L): <0.8V
@ lout = -400 mA
Vout (H): >2.4V
@ lout = 1 mA
Vin(H) Max: <42V with external open-drain pull-up
Totalizer:
Maximum Count: 67,108,863 (2
26
- 1)
Totalize Input: 100 kHz (max)
Signal Level: 1 Vp-p (min), 42 Vpk (max)
DAC Output:
±12V, non-isolated
lout: 10 mA max per DAC; 40 mA max per mainframe
WIRING LOG Slot Number: 100 200 300
Ch Name Comments
01 (DIO 1) Bit 0
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
GND
02 (DIO 2) Bit 0
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
GND
03 (Totalizer) Input (+)
Input (-)
Gate
04 (DAC 1) Output
GND
05 (DAC 2) Output
GND
Gate
6mm
20 AWG Typical
34970A Refresh UG.book Page 212 Wednesday, February 17, 2010 12:34 PM