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General Information40
Table 1-5. Supplemental GPIB Characteristics For All Models
Parameter
All Models
Digital Port Characteristics
Maximum ratings:
16.5 Vdc between terminals 1 & 2; 3 & 4; and from 1 or 2 to
chassis ground
FLT/INH Operation
FLT/INH Terminals 1 & 2
I
ol
(low-level output current)
V
ol
(low-level output voltage)
1.25 mA maximum
0.5 V maximum
FLT/INH Terminals 3 & 4
V
il
(low-level input voltage)
V
ih
(high-level input voltage)
I
il
(low-level input current)
tw (pulse width)
td (time delay)
0.8 V maximum
2.0 V minimum
1 mA
100 µs, minimum
4 ms, typical
Digital I/O Operation
Digital OUT Port 0,1,2 - Open Collector:
I
oh
(high-level output leakage @ 16.5 V)
I
oh
(high-level output leakage @ 5.25 V)
I
ol
(low-level output sink current @ 0.5 V)
I
ol
(low-level output sink current @ l V)
100 µA (ports 0,1); 12.5 mA (port 2)
100 µA (ports 0,1); 250 µA (port 2)
4 mA
250 mA
Digital IN Port 2 - Internal 4.64 k Pullup:
I
il
(low-level input current @ 0.4 V)
I
ih
(high-level input current @ 5.25 V)
V
il
(low-level input voltage)
V
ih
(high-level input voltage)
1.25 mA
250 µA
0.8 V maximum
2.0 V minimum
GPIB Interface Capabilities
Languages:
Interface:
SCPI (default); Compatibility
AH1, C0, DC1, DT1, E1, LE4, PP0, RL1, SH1,
SR1, TE6
Serial Link Capabilities (multiple supplies sharing one GPIB primary address)
Maximum number of supplies:
Maximum number of linked supplies:
Maximum total chain cable length:
16
15
30 m (100 ft)