3Com S330 manual Frame GND Circuit GND 15, 16 19, 20

Installation Procedures 45

Table 13 Connector Pinouts for RS-449 DTE Cable (60-pin connector) to DB-37 Male

	Pin # on 60-pin	Pin # on DB-37	Direction (for
Signal Name	Connector	Connector	Serial Port)
Frame GND	46	1
Circuit GND	15, 16, 45	19, 20, 37
RTS	9, 10	7, 25	Out
CTS	1, 2	9, 27	In
DSR	3, 4	11, 29	In
DCD (not used, see	5, 6	13, 31	In
DCE cable)
DTR	7, 8	12, 30	Out
LL (not used)	44	10	Out
SD+	11	4	Out
SD-	12	22	Out
RD+	28	6	In
RD-	27	24	In
SCTE+	13	17	Out
SCTE-	14	35	Out
SCR+	26	8	In
SCR-	25	26	In
SCT+	24	5	In
SCT-	23	23	In
Shorting GR 1	48, 49
Shorting GR 2	51, 52,