HP ESG Series - Page 107

4-12
Front and Rear Panel
Rear Panel Overview
3. AUXILIARY INTERFACE Connector
This male DB-9 connector is an RS-232 serial port which can be used for
remotely controlling the signal generator. The following table shows the
description of the pinouts.
4. SWEEP OUT Connector
This female BNC connector provides a voltage range of 0 to +10 V. When the
signal generator is sweeping, the SWEEP OUT signal ranges from 0 V at the
beginning of the sweep to +10 V at the end of the sweep regardless of the sweep
width. In CW mode this connector has no output. The output impedance is less
than 1
Ω and can drive 2 kΩ.
5. TRIGGER OUT Connector
This female BNC connector outputs a TTL signal that is asserted high at the start
of a dwell sequence, or at the start of waiting for the point trigger in manual sweep
mode, and low when the dwell is over, or when the point trigger is received. The
logic can be reversed.
Pin
Number
Signal
Description
Signal
Name
1 No Connection
2 Receive Data RECV
3 Transmit Data XMIT
4+5 V
5 Ground, 0 V
6 No Connection
7 Request to Send RTS
8Clear to SendCTS
9 No Connection