Quatech RS-422/485, MPA-200/300 user manual Test Mode

Figure 4 MPA-200 DTE Output Connector

-CTS 13	25 TEST MODE
-RTCLK 12
	24 +TTCLK
-TTCLK 11
	23 -DTR
-CD 10
	22 -DSR
-RRCLK 9
	21 RLBK
+CD 8
	20 +DTR
DGND 7
	19 -RTS
+DSR 6
	18 LLBK
+CTS 5
	17 +RRCLK
+RTS 4
	16 -RXD
+RXD 3
	15 +RTCLK
+TXD 2
	14 -TXD
CGND 1

Figure 5 MPA-200 DCE Output Connector

+RXD 2	14 -RXD
	15 +RTCLK
+TXD 3
	16 -TXD
+CTS 4
	17 +TTCLK
+RTS 5
	18 N/C
+DTR 6
	19 -CTS
DGND 7
	20 +DSR
+CD 8
	21 N/C
-TTCLK 9
	22 -DTR
-CD 10
	23 -DSR
-RRCLK 11
	24 +RRCLK
-RTCLK 12
	25 TEST MODE
-RTS 13

31 Quatech Inc., MPA-200/300 Manual