Avaya 1600 manual Signal RS-530 RS-449

The following figure lists the conversion from the RS-530 DB25 connector to the RS-449 DB37 conversion cable.

Signal	RS-530 RS-449
Shield Ground	1	1
Transmit Data (A)	2	4
Receive Data (A)	3	6
Request to Send (A)	4	7
Clear to Send (A)	5	9
DCE Ready (A)	6	13
Signal Ground	7	19
Receive Line Signal (A)	8	11
Receive DCE Clock (B)	9	26
Receive Line Signal (B)	10	29
Transmit DTE Clock (B)	11	35
Transmit DCE Clock (B)	12	23
Clear to Send (B)	13	27
Transmit Data (B)	14	22
Transmit DCE Clock (A)	15	5
Receive Data (B)	16	24
Receive DCE Clock (A)	17	8
	18
Request to Send (B)	19	25
DTE Ready (A)	20	12
	21
DCE Ready (B)	22	31
DTE Ready (B)	23	30
Transmit DTE Clock (A)	24	17
	25

Avaya, Inc. - 191 - PARTNER ACS 1600 DSL module User Guide