ZyXEL Communications ACCESSING INTERNET & INTRANET omni series User Manual page 165

Pin ITU-TSS
Number Signal
Name
22 125
24 113
25 142
Async. Hardware Flow Control Cable Connection
Modem
(DCE) Signal
DB25
2 TXD
3 RXD
4 RTS
5 CTS
6 DSR
7 Ground
8 CD (DCD) 1
20 DTR
22 RI
EIA Signal/Pin
Signal Description
Name
Test.
CE Ring Indicator(RI).
DA Transmit Clock
Signal (source:
DTE).
Test Indicator.
to PC to DCE
(DTE) (Null)
DB 9 DB25
3 3
2 2
7 5
8 4
6 20
5 7
20
4 6,8
9
to
MAC
Mini 8
3
5
1
2
4,8
1
Serial Port Interface 153
Signal
Direction
DTE -DCE
to NeXT
68,040
Mini 8
3
5
6
8
4
2
1