Svantek SV 971A, User Manual

Page: 257 / 305

SV 971A User Manual
– Appendixes
257
The USB-C interface can work as external power source for the meter.
USB-C socket (external view)
Table C.4.3. Pin-out of the USB-C device connector
Contact no.
Signal
name
Description
A1 B1 GND
Ground return
A2 B2
SSTXp1
not used
A3 B3 SSTXn1
not used
A4 B4
V
BUS
Bus power (5VDC ±0.5V)
A5 B5
CC1
Configuration channel (5.1kΩ to ground as UFP
receiver)
A6 B6 Dp1
USB 2.0 differential pair, position 1, positive
A7 B7
Dn1 USB 2.0 differential pair, position 1, negative
A8 B8 SBU1
not used
A9 B9 V
BUS
Bus power (5VDC ±0.5V)
A10 B10
SSRXn2 not used
A11 B11 SSRXp2
not used
A12 B12 GND
Ground return
RS 232 interface (optional)
The RS 232 interface option for SV 971A is provided by means of the SP 75 interface. It conforms to the EIA
Standard RS 232C. It enables the user to programme remotely all instrument functions and the transmissions
to and from the meter with the speed from 300 bit/s to 115200 bit/s.
Note: The SP 75 interface must be connected to the SV 971A USB port and proper operation
of this port has to be set-
up in the instrument’s SETUP Menu before!
The SP 75 - DB 09 F - pin female connector pin-out is given below.