4-6 INITIAL SETUP The 682XXB/683XXB is calibrated using an IBM compatible PC and
external test equipment. The PC must have the Windows3.1 or Win-
dows 95 operating system installed and be equipped with a mouse.
Initial setup consists of interfacing the PC to the signal generator.
Interconnec-
tion Using the ANRITSU P/N T1678 serial interface as-
sembly,connect the PC to the 682XXB/683XXB as
follows:
1. Connect the wide flat cable between the 682XXB/
683XXB rear panel SERIALI/O connectorand the
P1 connector on the T1678 serial interface PCB.
2. Connect the narrow flat cable between the P2
(TERM) connector on the T1678 serial interface
PCB and the COM1 or COM2 connector on the
PC. Use the RJ11-to-DB-9or RJ11-to-DB-25
adapter,provided with the T1678 serial interface
assembly,to make the connection at the PC.

682XXB/683XXB MM 4-7

CALIBRATION INITIAL SETUP
IBM-Compatible PC
To
682XXB / 683XXB
To
PC
P1 P2
P3
Term
T1678 Serial Interface
682XXB / 683XXB
COM1
or
COM2
Serial
I/O
Figure 4-1. PC to 682XXB/683XXB Interconnection for Calibration