Contents - Maintenance and Instrument Interfaces FSE
1065.6016.12 8.2 E-15
Instrument Interfaces
IEC Bus Interface
The standard instrument is equipped with an IEC/IEEE Bus connector. An IEEE 488 interface connector
is located on the rear panel of the FSE. An external controller for remote control of the instrument can
be connected via the IEEE 488 interface connector using a shielded cable.
A further optional IEC/IEEE-bus interface can be installed in the FSE and is, with an installed computer
option, assigned to the controller. This interface can be controlled by standard software (R&S-Basic,
QUICK-Basic, etc.). It enables the remote control of the instrument via an external link to the two
IEC/IEEE-bus interfaces and in addition the control of other equipment via the IEC/IEEE-bus connector
at the rear of the unit (eg control of a complete test setup).
The following section describes the first IEC Bus interface over which the instrument can be remotely
controlled. The characteristics of the PC2A/PC-AT controller interface depend upon the user-installed
software running on the controller and is, therefore, not described here.
Interface Characteristics
• 8-bit parallel data transfer
• bidirectional data transfer
• three-line handshake
• high data transfer rate of max. 350 kbyte/s
• up to 15 instruments can be connected
• maximal length of the interconnecting cables 15 m (single connection, 2m)
• wired-OR connection if several instruments are connected in parallel.
12
1
13
24
SHIELD SRQ NDAC DAV DIO4 DIO2
LOGIC GND GND(10) GND(8) GND(6) DIO8 DIO6
GND(11) GND(9) GND(7) REN DIO7 DIO5
ATN IFC NRFD EOI DIO3 DIO1
Fig. 8-1 Pin assignment of IEC-Bus interface
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