Agilent Technologies E4374A, E4370A, E4371A Auxiliary Output Connection, RS-232 a and B Connectors

1 2 3 4 5

6 7 8 9

DB-9 male connector

Pin

1

2

3

4

5

6

7

8

9

Input/Output

Input

Output

Common

Output

Input

Installation - 2

Description no connection Receive Data (RxD) Transmit Data (TxD) not used

Signal ground not used

Request to Send (RTS) Clear to Send (CTS) no connection

Figure 2-5. RS-232 A and B Connectors

The following diagram describes the cable connections between the Agilent MCCD RS-232 ports and any local peripherals such as a PC or barcode scanner. Refer to table 2-2 for cable kit information.

MCCD		NULL-MODEM CABLE	PC
			(or serial device)
DCD	1	1	DCD
RXD	2	2	RXD
TXD	3	3	TXD
DTR	4	4	DTR
GND	5	5	GND
DSR	6	6	DSR
RTS	7	7	RTS
CTS	8	8	CTS
RI	9	9	RI
DB9 MALE	DB9 FEMALE	DB9 FEMALE	DB9 MALE

Figure 2-6. Null-modem Cable Connections

Auxiliary Output Connection

An undedicated isolated auxiliary output is provided to power various actuators and circuits local to the test fixture. It can also be used as the pull-up source for any digital I/O connections that require an external pull-up source. The auxiliary output is available through a 4-pin Phoenix/Weidmuller style connector on the rear panel. The connector has screw terminals for making wire connections and is detachable.

As explained in chapter 3, the Agilent MCCD Configuration Screens let you set this output to between 5 volts and 24 volts in 0.1-volt increments. 10 Watts of total output power is available. The auxiliary output is isolated by up to 42 volts with respect to chassis common (earth ground).

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