user manual

HP 8517B S-Parameter Test Set Manual 3-5
Multiple Test-Set Connections
For dual test-set configurations, set each rear panel address switch on each
test set to the address shown in Figure 3-3. Refer to Figure 3-4 on page 3-7
for the configuration of two or more test sets.
• Use the supplied test set interconnect cable to attach test set number 1,
J11 to the network analyzer.
• Use the supplied test set interconnect cable to attach test set number 2,
J11 to test set number 1, J10.
You may connect up to four test sets in a series if the total length of all test
set interconnect cables does not exceed 13 meters (about 40 feet). The last
test set connected in the chain does not require Option 001.
If the RF coaxial switch is not incorporated into the system, the RF input to
the test set must be manually switched to the active test set.
Initialization at
Power-Up
At power-up, configure the IF switches so that only one system test set is
active. To verify which test set is active, use the following steps:
1. Verify that all system test set LEDs are lit.
2. View the network analyzer’s test set address by pressing the
INSTRUMENT STATE,
[LOCAL] key, then press {TEST SET} . The HP-IB
address of the test set is displayed on the screen.
The address displayed must match the address of the test set selected. If
not, enter the correct address using the network analyzer’s key pad.
3. If an unselected test set’s LEDs are lit, deactivate it. Do this by entering
its address, pressing
[x1] , then entering the address of the test set desired,
followed by
[x1] .
Selecting a Test Set To select another test set, follow the procedure in Table 3-4 on page 3-6 of
this chapter.