Svantek SVAN 971 - Page 180

SVAN 971 User Manual – Appendixes
180
Table C.4.3. Pin-out of the USB-Device connector
Pin number
USB
1
Vbus
2
D-
3
D+
4
ID
5
GND
Shield
Ground
RS 232 interface (optional)
The RS 232 interface option for SVAN 971 is provided by means of the SV 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 SV 75 must be connected to the SVAN 971 USB port and proper operation of this
port has to be set-up in the instrument’s SETUP Menu before!
The SV 75 - DB 09 F - pin female connector pin-out is given below.
Table C.4.4. SV 75 interface description
PC RS 232,
9 - pin connector
Signal name
SV 56 connector
(DB 09 F)
Pin number
1 – LSD
1 (not connected)
2 – RXD
3
3 – TXD
2
4 – DTR
6 connected to pin 4
5 – GND
5
6 – DSR
4 connected to pin 6
7 – RTS
8
8 – CTS
7
9 – GND
9 (not connected)
Real Time Clock
Built-in real time. Accuracy better then 1 minute/month.
Weight with the battery 225 g (including microphone and preamplifier).
Dimensions 20
x
52
x
232 mm .