3Com S330 manual Shorting GR

Installation Procedures 49

Table 17 Connector Pinouts for X.21 DTE cable (60-pin Connector) to DB-15 Male

	Pin # on 60-pin	Pin # on DB-25	Direction (for
Signal Name	Connector	Connector	Serial Port)
Frame GND	46	1
Circuit GND	15	8
RTS	9, 10	3, 10	Out
CTS	1, 2	5, 12	In
DSR			In
DCD (not used, see			In
DCE cable)
DTR			Out
LL (not used)			Out
SD+	11	2	Out
SD-	12	9	Out
RD+	28	4	In
RD-	27	11	In
SCTE+			Out
SCTE-			Out
SCR+	26	6	In
SCR-	25	13	In
SCT+			In
SCT-			In
Shorting GR 1	47, 48
Shorting GR 2	51, 52,