Procedure - Agilent Technologies J2126A Installation And Verification Manual

3
Performance Tests
NO TE
80
For accuracy required the counter MUST have high stability Internal
Timebase option or be externally referenced to an in-house Standard.

Procedure

1 Press <Menu>, choose Tx/Rx > Stored Settings then press
<Select>. Select Default then Recall.
2 Press <Menu>, choose System > Preferences then press
<Select>. Set Network Standard to SDH.
Now set Clock Source to External, Format to 2 Mb/s Clock.
3 Connect the Transmission Test Set's 2 MHz Clock Out port to
the Frequency Counter Input using a 75/50 Ω matching pad,
set the input impedance to 50 Ω . Alternatively, a 75 Ω
termination can be used with the input impedance set to
1 M Ω .
Connect the Counter rear panel 10 MHz Reference Output to
the PDH/DSn Test Set external 10M CLOCK input port.
Connect the PDH/DSn Test Set CLOCK REF OUT or
TRANSMIT CLOCK OUT port to the instrument CLOCK IN
2 MHz BNC port.
Installation and Verification Manual