RAD Data comm ASMI-450 operation manual RS-530 DCE Connector and Adapter Cables

Appendix A

Connector Wiring

A.1 RS-530 DCE Connector and Adapter Cables

When the ASMi-450 is ordered with an RS-530 DCE interface, the physical interface is a 25-pin female connector wired in accordance with Table A-1.

Table A-1. RS-530 DCE Connector

Pin	Designation	Direction	Function
1	FG	↔	Frame Ground
2	SDA	To ASMi-450	Send Data - wire A
3	RDA	From ASMi-450	Receive Data - wire A
4	RTSA	To ASMi-450	Request to Send (RTS) - wire A
5	CTSA	From ASMi-450	Clear to Send (CTS) - wire A
6	DSRA	From ASMi-450	Data Set Ready (DSR) - wire A
7	SG	↔	Signal Ground
8	DCDA	From ASMi-450	Carrier Detect (DCD) - wire A
9	RCB	From ASMi-450	Receive Clock - wire B
10	DCDB	From ASMi-450	Carrier Detect (DCD) - wire B
11	SCEB	To ASMi-450	Send External Clock - wire B
12	SCB	From ASMi-450	Send Clock - wire B
13	CTSB	From ASMi-450	Clear to Send (CTS) - wire B
14	SDB	To ASMi-450	Send Data - wire B
15	SCA	From ASMi-450	Send Clock - wire A
16	RDB	From ASMi-450	Receive Data - wire B
17	RCA	From ASMi-450	Receive Clock - wire A
18	LL	To ASMi-450	Local Loopback (V.54 Loop 3)
19	RTSB	To ASMi-450	Request to Send (RTS) - wire B
20	DTRA/RCEA	To ASMi-450	Data Terminal Ready(DTR) - wire A/Receive External Clock - wire
			A
21	RL	To ASMi-450	Remote Loopback (V.54 Loop 2)
22	DSRB	From ASMi-450	Data Set Ready (DSR) - wire B
23	DTRB/RCEB	To ASMi-450	Data Terminal Ready (DTR) - wire B/Receive External Clock - wire B
24	SCEA	To ASMi-450	Send External Clock - wire A
25	TM	From ASMi-450	Test Indicator

ASMi-450 Installation and Operation Manual A-1