Agilent Technologies Option H48 Multiport Test Set Z5623A User's And Service Manual page 26

Installation
Test Set Familiarization
The PORT CONNECTION Status LCD
The PORT CONNECTION Status LCD displays the following:
• The status (O = "Open", L = "Low") of each of the five control lines
All test ports not displayed on the Status LCD are internally
terminated in 50 Ω.
The CONTROL LINES Connector
The 9-pin CONTROL LINES Connector provides the user with a way of
controlling either the Device Under Test (DUT) or other equipment. The
test set cannot source any current from this connector. Therefore, the
user must provide an external power supply and some additional
circuitry if he wishes to use the connector. Refer
Lines Connector" on page 7-6
Do not apply more than +22 Vdc to pins 1 through 5 of the CONTROL
CAUTION
LINES Connector.
Do not employ external circuitry that forces the test set to sink more
CAUTION
than 250 mA on any control line (pins 1 through 5 of the CONTROL
LINES Connector) when that line is commanded to the "Low" state
(+0.63 Vdc).
2 -10
• Which test port is connected to the REFLECTION port
• Which test port is connected to the TRANSMISSION port
(C5 through C1)
to"Using the Control
for further details.
Agilent Technologies Z5623A Option H48