Keithley 2601 Reference Manual page 493

Keithley Instruments, Inc.
28775 Aurora Road
Cleveland, Ohio 44139
1-888-KEITHLEY
www.keithley.com
4. GENERAL
Specifications Category
Host Interfaces
IEEE-488
RS-232
Expansion Interface
Cable Type
Length
Digital I/O Interface
Connector
Input/Output Pins
Absolute Maximum
Input Voltage
Absolute Minimum
Input Voltage
Maximum Logic Low
Input Voltage
Minimum Logic High
Input Voltage
Maximum Source
Current (flowing out of
Digital I/O bit)
Maximum Sink Current
@ Maximum Logic Low
Voltage (0.7V
Absolute Maximum
Sink Current (flowing
into Digital I/O pin
5V Power Supply Pin
Safety Interlock Pin
Specifications are subject to change without notice.
SPEC-2636_2636 Rev. A / September 2007
Specifications
Computer control interfaces
IEEE-488.1 compliant. Supports IEEE-488.2 common commands
and status model topology
Baud rates from 300bps to 115200bps. Programmable number of
data bits, parity type, and flow control (RTS/CTS hardware or
none). When not programmed as the active host interface, the
SourceMeter can use the RS-232 interface to control other –
instrumentation
The TSP-Link expansion interface allows TSP enabled
instruments to trigger and communicate with each other.
Category 5e or higher LAN crossover cable
3 meters maximum between each TSP enabled instrument
See 2601/02 GENERAL specifications for circuit diagram
25-pin female D
14 open drain I/O bits
5.25 V
– 0.25 V
0.7V, +850 µA max
2.1V, + 570 µA
+ 960 µA
– 5.0 mA
– 11 mA
Limited to 600 mA, solid state fuse protected
Active high input. > 3.4 V @ 24 mA (absolute maximum of 6 V)
must be externally applied to this pin to insure 200 V operation.
This signal is pulled down to chassis ground with a 10 K
200 V operation will be blocked when the INTERLOCK signal is
<_0.4 V (absolute minimum –0.4 V). See figure below:
System SourceMeter
Model 2635/2636
®
Specifications
resistor.
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