Keithley S46, Instruction Manual

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2-6 Document number: S46-901-01 Rev. F / March 2011
Section 2: Connections S46/S46T/S46L Microwave Switch System Instruction Manual
Figure 2-4
Relay input and output connections
Transfer switch (XFER)
Up to four transfer switches (DPDT) can be located in Relay positions A through D. The transfer
switch cross-connects two input ports with two output ports. When using transfer switches, make
sure that you note the operational differences of these switches (see
Section 3 ).
GPIB control connection
The rear-panel, IEEE-488 (GPIB) control port is connected to the GPIB port of a computer
(controller) using a shielded IEEE-488 interface cable with metric mating screws.
Figure 2-5 shows
the GPIB control connector, and Table 2-2 summarizes the GPIB control connector terminals.
RELAY 1 to 8 Connections RELAY A to D Connections
C = Common
1 to 4 = Inputs
C
2 6
5
3
4-pole
Terminated
1 to 4 = Inputs
1
3
2
4
XFER
Un-terminated
C = Common
1 to 6 = Inputs
6-pole
C
1
4
2
3
6
5
C = Common
1 to 4 = Inputs
C
1 4
3
2
4-pole MSPDT
C = Common
1 to 6 = Inputs
6-pole
C
1
4
2
3
6
5
Terminated
Un-terminated
NC NO C
NC NO C
NC NO C
NC = Normally Closed
NO = Normally Open
C = Common