ZyXEL Communications omni.net Plus - Manual (Page 184)

Technical Reference for ZyXEL omni.net series
D-2
Pin #
Description
ITU-TSS
Signal
Name
EIA
Signal
Name
Signal Description
Signal Direction
DTE - DCE
24
Clock Source:
DTE
113 DA Transmit Clock Signal
*
25 TI 142 Test Indicator.
+
Table 82. EIA-232D 25 Pin Serial Port Interface
Async. Hardware Flow Control Cable Connection
Modem
(DCE)
DB25
Signal
to PC (DTE)
DB 9
to DCE (Null)
DB25
To MAC
Mini 8
to NeXT
68,040 Mini 8
2 TXD 3 3 3 3
3 RXD 2 2 5 5
4 RTS 7 5 1 6
5 CTS 8 4 2 8
6 DSR 6 20
7 Ground 5 7 4,8 4
8 CD (DCD) 1 20 2
20 DTR 4 6,8 1 1
22 RI 9
Table 83. Async. Hardware Flow Control Cable Connection