Echelon i.LON 10 Ethernet Adapter - Manual (Page 15)

Table 2-2
DTE Modem requiring a null modem cable to DTE i.LON 10 Adapter
Connection (DB-9 to DB-9)
Modem Signal
Name
Cable DB-9
Male
Null
Modem
Cable
DB9
Femal
e
i.LON 10 (DTE)
DB-9 Male
DCD Pin 1 Pin 1-1 Pin 1 DCD—Pin 1
RxD Pin 3 Pin 2-3 Pin 2 RxD—Pin 2
TxD Pin 2 Pin 3-2 Pin 3 TxD—Pin 3
DTR Pin 4 Pin 4-6 Pin 4 DTR—Pin4
GND Pin 5 Pin 5-5 Pin 5 GND—Pin 5
DSR Pin 6 Pin 6-4 Pin 6 DSR—Pin 6
RTS Pin 7 Pin 7-8 Pin 7 RTS—Pin 7
CTS Pin 8 Pin 8-7 Pin 8 CTS—Pin 8
modem
DB-9
male end
i.LON 10
DB-9
male end
Null
Modem
When connecting a DCE modem with a DB-25 serial port to the i.LON 10, the
signals are communicated as shown in Table 2-3.
Table 2-3
DCE Modem to DTE i.LON 10 Adapter Connection (DB-25 to DB-9)
Modem Signal
Name Cable DB-25
Male
Cable DB9
Female
i.LON 10 (DTE)
DB-9 Male
DCD Pin 8 Pin 1 DCD—Pin 1
TxD Pin 3 Pin 3 RxD—Pin 2
RxD Pin 2 Pin 2 TxD—Pin 3
DTR Pin 20 Pin 4 DTR—Pin4
GND Pin 5 Pin 5 GND—Pin 5
DSR Pin 6 Pin 6 DSR—Pin 6
RTS Pin 7 Pin 7 RTS—Pin 7
CTS Pin 8 Pin 8 CTS—Pin 8
When connecting a DTE modem with requiring a null modem cable with a DB-25
serial port to an i.LON 10, the signals are communicated as shown in Table 2-4.
i.LON 10 Ethernet Adapter User’s Guide 2-5