Keithley 3940 Service Manual page 51

Multifunction synthesizer
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B.2 GPIB INTERFACE
GPIB Interface
Functions
Data
Delimiter
Address
Output Driver
Local Key
Connector
SHl
Full source handshaking capability
AH1
Full acceptor handshaking capability
T6
Basic talker, serial poll, talker unaddressed if MLA
L4
Basic listener, unaddressed if MTA
SRl
Full service request capability
RI.1
Full remote and local operation capability
PI?0
No parallel-polling function capability
DC1
Full device clear capability
DTO
No controller function capability
co
No controller function capability
ISO 'I-bit code (ASCII code)
Transmission
CR or CR/IF (selected by numeric keys on the panel) and EOI are sent
simultaneously
Reception
CR, CR/LF, CR + EOI, CR/IF + EOI, or EOI
0 to 30 (selected by numeric keys on the panel)
DIOl to DI08, NDAC, NRFD, SRQ
1 Open collector
DAV, EOI
1 T&state
Switch with return-to-local function
IEEE-488 24-pin GRB connector on rear panel
B.3 GENERAL
Signal Ground
Power Supply
Ambient Temperature
and Humidity Ranges
Dimensions
The grounding pins of all input/output
connectors are connected to the chassis.
Voltage
100,120,22D or 240V AC flO% (25OV max)
Frequency
48to62Hz
Power Consumption
Approx. 70VA
Operating
0 to 4O"C, 10 to 90% RH (without condensation)
Storage
-10 to 50°C, 10 to 80% RH (without condensation)
Protruding parts not
216 (W) x 132.5 @I) x 350 @) mm
Weight
included
8.5 (w) x 5-l/4 (ITI) x 133/4 @) in.
Approx. 5.6kg (12.5 lbs.)

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