R&S®SML / R&S®SMV03 Interfaces
1090.3123.12 E-6 5.25
Interfaces
IEC/IEEE-Bus Interface
The instrument is equipped with an IEC/IEEE-bus interface as standard. The connector to IEEE 488 is
provided at the rear of the instrument. A controller for remote control can be connected via the interface.
Connection is made using a shielded cable.
Characteristics of Interface
8-bit parallel data transmission
Bidirectional data transmission
Three-wire handshake
High data transmission rate, max. 350 kbyte/s
Up to 15 devices can be connected
Maximum length of connecting cables 15 m (single connection 2 m)
Wired OR 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) REN DIO7
GND(11) GND(9) GND(7) DIO8 DIO6 DIO5
ATN IFC NRFD EOI DIO3 DIO1
Fig. 5-5 Pin assignment of IEC/IEEE-bus interface
Bus Lines
1. Data bus with 8 lines DIO 1 to DIO 8
Transmission is bit-parallel and byte-serial in ASCII/ISO code. DIO1 is the least significant bit,
DIO8 the most significant.
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