Specifications

Hardware Reference 87
C613-03058-00 REV A
Figure48: Pin wiring diagram for a DTE asynchronous port (DB9 male) to modem
(DCE) cable.
Figure49: Pin wiring diagram for a DCE asynchronous port (DB9 female connector)
to modem cable.
Notes:
(1) → Output from router; ← Input to router.
(2) Cable version 1.0.
DB9MDB9F
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
9
Cable
Pin 9
Pin 6
Pin 5
Pin 1
DB9 Male Pin View
Pin 9
Pin 6
Pin 5
Pin 1
DB9 Female Pin View
DB9 Female
(to router/DTE)
DB9 Male
(to modem/DCE)
←
(DCD)
← (RXD)
→ (TXD)
→ (DTR)
(GND)
Not connected
→ (RTS)
← (CTS)
(RING)
(DCD)
(RXD)
(TXD)
(DTR)
(GND)
(DSR) Not needed
(RTS)
(CTS)
Notes:
(1) → Output from router; ← Input to router
(2) Cable version 1.0.
DB9MDB9F
3 (TXD)
2 (RXD)
1 (DCD)
5 (GND)
4 (DTR)
8 (CTS)
7 (RTS)
9
6
Not connected
1
2
3
4
5
6
7
8
9
Cable
Pin 9
Pin 6
Pin 5
Pin 1
DB9 Male Pin View
Pin 6
Pin 9
Pin 1
Pin 5
DB9 Male Pin View
DB9 Male
(to router/DCE)
DB9 Male
(to modem/DCE)
Not connected
→ (TXD)
← (RXD)
← (CD)
(GND)
→ (DTR)
← (CTS)
→ (RTS)
(RING)