Service manual

8510XF Network Analyzer Systems 2-31
Installation
Controller / Test Head Interconnections
Sequence of test head connections
NOTE Use a 57 N-cm (5 in-lb) torque wrench to tighten the SMA connectors, and a
90 N-cm (8 in-lb) torque wrench to tighten the 2.4 mm and 3.5 mm
connectors.
The connectors on the backs of the test heads are very closely spaced.
Attaching cables to these connectors is easiest if they are attached in the
following sequence (as illustrated in Figure 2-23 below):
1. b RF OUPTUT: In systems without Option 005, this connector is not
used. Check to see that it is fitted with a male SMA termination.
2. a RF OUTPUT: In systems without Option 005, this connector is not
used. Check to see that it is fitted with a male SMA termination.
3. LO INPUT; 3.5 mm connector
4. MM DRIVE; 2.4 mm connector
5. RF INPUT; 2.4 mm connector
6. BIAS; LEMO multi-pin connector
7. BIAS TEE; SMB connector (if not in use, should be fitted with an SMB
termination)
8. CONTROLLER INTERFACE (multi-pin connector)
Figure 2-23 Test Head Cabling Sequence
NOTE To remove cables from the test head, use the reverse of the sequence
described above.