Keithley 6517B Reference Manual page 27

Section 2: Getting started
3 COMMON
 Connector that is internally connected to INPUT low.
4 CHASSIS GROUND
 Attached cable that connects the chassis to ground through the power line cord. COMMON
can also be grounded by plugging the cable into COMMON. For floating measurements,
make sure the cable connection between COMMON and Chassis Ground is open.
5 2V ANALOG OUTPUT
 Connector that provides a scaled 0 V to 2 V output that is referenced to COMMON. Typically
connected to a measuring device such as a chart recorder. Rated at 2 V DC max. See
analog output
6 HUMIDITY
 Connect the optional Model 6517-RH probe for relative humidity measurements.
7 TEMP TYPE K
Connect the Model 6517-TP type K thermocouple for temperature measurements.

8 POWER LINE INPUT MODULE
 Provides connections for the power line input and contains the line fuse. If the fuse needs to
be replaced, refer to
9 IEEE-488 CONNECTOR
 Connects the instrument to the IEEE-488 (GPIB) bus; use shielded IEEE-488 cables.
10 INTERLOCK
 Connects the safety interlock to a test fixture using an appropriate cable. Interlock is
automatically enabled when the appropriate interlock cable is connected to the Model 6517B.
Rated at 50 Hz to 60 Hz, 140 VA max. The interlock's CS-1305 connector includes four pins
(left to right as viewed from rear of the Model 6517B):

Pin 1: Interlock safe

Pin 2: Ground

Pin 3: +5 VDC output

Pin 4: Surface/volume select (low = volume, high = surface)
 See
11 RS-232
 DB-9 connector for the RS-232 interface; use a standard RS-232 cable.
12 DIGITAL I/O
 A male DB-9 connector for the four TTL-compatible digital output lines.
13 TRIGGER LINK
 An 8-pin micro DIN connector for sending and receiving trigger pulses to and from other
instruments.
14 V-SOURCE HI and LO
Safety banana jacks for the voltage source. Rated at 1000 V max.

15 OPTION SLOT
An option card, such as the Model 6521 or Model 6522 scanner card, installs in this slot.

2-4
(on page 5-8) for more information.
Line fuse replacement
Interlock and test fixtures
Model 6517B Electrometer Reference Manual
(on page 2-5).
(on page 5-6) for more information.
6517B-901-01 Rev. C / August 2015
2 V