Rear Panel; Line Power Switch; Line Power Input Assembly; Rs232 Connector - Ametek 7280 Instruction Manual

Chapter 4, FRONT AND REAR PANELS

4.2 Rear Panel

4.2.01 Line Power Switch

4.2.02 Line Power Input Assembly

4.2.03 RS232 Connector

4.2.04 AUX RS232 Connector

4-6
Figure 4-5, Model 7280 Rear Panel Layout
As shown in figure 4-5, the line power switch, line power voltage selector, two
RS232 connectors, a GPIB (IEEE-488) connector, digital I/O port, preamplifier
power connector and twelve BNC signal connectors are mounted on the rear panel of
the instrument. Brief descriptions of these are given in the following text.
CAUTION: The model 7280 may be damaged if the line voltage is set for 110 V AC
operation and it is turned on with 220 V AC applied to the power input connector.
Please ensure that the line voltage selector is set to the correct line voltage before
switching on.
Press the end of the switch marked I to turn on the instrument's power, and the other
end marked O to turn it off.
This houses the line voltage selector and line input fuse. To check, and if necessary
change, the fuse or line voltage see the procedure in section 2.1.05.
This 9-pin D type RS232 interface connector implements pins 1, 2, 3 and 7 (Earth
Ground, Transmit Data, Receive Data, Logic Ground) of a standard DTE interface.
To make a connection to a PC-compatible computer, it is normally sufficient to use a
three-wire cable connecting Transmit Data to Receive Data, Receive Data to
Transmit Data, and Logic Ground to Logic Ground. Appendix D shows the
connection diagrams of cables suitable for computers with 9-pin and 25-pin serial
connectors. Pinouts for this connector are given in appendix B.
This connector is used to link other compatible EG&G equipment together in a
"daisy-chain" configuration. Up to an additional 15 units can be connected in this