Allied Telesis AR Series Hardware Reference Manual page 87

Hardware Reference
C613-03031-01 REV E
Figure 47: Pin wiring diagram for a DCE asynchronous port (DB9 female connector)
to modem cable.
DB9 Male
(to router/DCE)
Not connected 1
→ (TXD)
2
← (RXD)
3
← (CD)
4
(GND)
5
→ (DTR)
6
← (CTS)
7
→ (RTS)
8
(RING)
9
Pin 5
Pin 1
Pin 9
Pin 6
DB9 Male Pin View
Notes:
→ Output from router; ← Input to router
(1)
(2) Cable version 1.0.
Figure 48: Pin wiring diagram for a standard modem cable.
RJ45
(to switch or router)
→
(TXD) 6
←
(RXD) 5
→
(RTS) 8
←
(CTS) 7
←
(GND) 4
→
(DCD) 2
←
(DTR) 3
(RING) 1
Notes:
→ Output from switch or router; ← Input to switch or router.
(1)
(2) Cable version 1.0.
DB9 Male
(to modem/DCE)
3 (TXD)
2 (RXD)
1 (DCD)
5 (GND)
4 (DTR)
8 (CTS)
7 (RTS)
9
6
Not connected
Pin 5
Cable
Pin 9
DB9 Male Pin View
DB25
Male
1 Not connected
2
3
4
5
6
Not connected
7
8
20
22
87
Pin 1
Pin 6
DB9MDB9F
MODEM