Tektronix 8501-1, 8501-2 User manual

Models 8501-1 and 8501-2 Trigger Link Cable

Keithley Instruments, Inc.

28775 Aurora Road
Cleveland, Ohio 44139
1-888-KEITHLEY

http://www.keithley.com

Instruction Sheet

Description

The Keithley Instruments Model 8501 Trigger Link Cable is an 8-conductor cable terminated at each end with
an 8-pin micro-DIN connector.

The Model 8501 connects instruments with micro-DIN trigger ports. It is also compatible with the rear-panel
digital I/O port of the 7001, and can be used to connect digital signals between this port and user-supplied
external circuitry.

Figure 1: Model 8501 Trigger Li nk Cab le

The cable is available in two lengths (see table below).

Model number Length

8501-1 1 meter (3.3 feet)
8501-2 2 meters (6.6 feet)

The digital I/O and trigger link receptacles on the Model 7001 both accept the Model 8501 cable.
Ensure that you connect the cable to the proper receptacle. Do not mix digital I/O and trigger link
signals.

Characteristics

Terminations: Two each, 8-pin, male, micro DIN
Shield: Foil wrap with drain wire
Capacitance: <25 pF per foot
Maximum Voltage Rating: <42 V peak
Maximum Current Rating: <1 A

PA-374 Rev. B / January 2014 *PPA374B* 1

Models 8501-1 and 8501-2 Trigger Link Cable

Pinouts

Pin Trigger Link Digital I/O Line

1 TLINK Line 1 Digital input

Figure 2: Model 8501 pinouts

2 TLINK Line 2 Not connected
3 TLINK Line 3 Voltage input (up to 30 V)
4 TLINK Line 4 Digita l out put 1
5 TLINK Line 5 Digita l out put 2
6 TLINK Line 6 Digita l out put 3
7 Digital common Digital output 4
8 Digital common Digital common

2 PA-374 Rev. B / January 2014