Keithley 3940 Service Manual page 45

ELECTRICAL SPECIFICATIONS (CONT.)
Synchronous Operation
The synchronous operation mode can be selected by connecting the optional cable to PHASE SYNC I/O of multiple units. The master
unit can control up to 3 slave units.
Synchronous Operation Mode Mode Mode
Single Single
Master Master
Slave Slave
Operation Operation PHASE SYNC I/O connections PHASE SYNC I/O connections
Single unit operation Single unit operation
No connection No connection
Transmit clock and I$ SYNC Transmit clock and I$ SYNC
Connect with the optional synchronous cable Connect with the optional synchronous cable
pulse to slave unit pulse to slave unit
(master connector). (master connector).
Operate with clock and Operate with clock and Connect with the optional synchronous cable Connect with the optional synchronous cable
(B SYNC pulse from the (B SYNC pulse from the
(slave connector). (slave connector).
Clock and 0 SYNC pulse delay time/l
Delay time from Q, SYNC pulse to
waveform output
PHASE SYNC I/O connector
master unit
Generates $ SYNC pulse to the PHASE SYNC I/O connector simultaneously when restarting
oscillation of both main synthesizer and sub synthesizer during CONT mode.
tit 1Ons max/unit
Mainsynthesizer 'L , n
12Ons max
(duty cycle fixed/variable
1 Other waveforms
I2usmax
I
1 Jitter
.
I 330nsmax
36nix-i connector on rear Dane1
I