CIRCUTOR CVM144 Series - Manual (Page 47)

----- Supply network analyzer CVM-144 ------ User's manual --- Page No. 46
11.2.- RS-485 type connection to a RS-232 type input of a PC
A1
A2
5
1
2
19 ( - )
20 ( + )
18 GND
5 1 2
7 5
2 3
5 7
3 2
RS-485
RS-232
CONVERTER
DB-9
RS-232 / RS-485
PC
CVM-144
CVM-144
*If the RS485/232 converter with RTS control ability (code 770208) is used, then
the pin 7 connection in the 232 side is not necessary to be done.