GE GFK-0726B manual Custom Made Cables, No Connection Signal Ground

4

Custom Made Cables

If you want to make your own cable to connect to some serial device, use the drawing of the SLP pin assignments and the cable connection drawings in the previous section for the required connections. Hardware flow control lines must be used when communicat- ing with the SLP using RS-232. The flow control lines are not used for RS-422/485 com- munications.

SHIELD	1
	14
( PORT 1 ) RS±232 TD	2
	15
( PORT 1 ) RS±232 RD	3
	16
( PORT 1 ) RS±232 RTS	4
	17
( PORT 1 ) RS±232 CTS	5
	18
NO CONNECTION	6
	19
SIGNAL GROUND	7
	20
( PORT 1 ) RS±232 DCD	8
	21
( PORT 2 ) RS±485 SD ( A )	9
	22
( PORT 2 ) RS±485 RTS ( A )	10
	23
( PORT 2 ) RS±485 CTS ( A' )	11
	24
( PORT 2 ) TERMINATION ( CTS )	12
	25
( PORT 2) RS±485 RD ( A' )	13

a45090

RS±232 DTR ( PORT 1 )

RS±485 SD ( B ) (PORT 2 )

RS±485 RTS ( B ) ( PORT 2 )

RS±485 CTS ( B' ) ( PORT 2 )

TERMINATION ( RD ) (PORT 2)

RS±485 RD ( B' ) ( PORT 2 )

Figure 4-3.Serial Port Assignments for Series 90-30 SLP

GFK-0726B Chapter 4 Serial Communications 4-7