Specifications

86 AR Router
C613-03058-00 REV A
Figure47: Pin wiring diagram for a standard DB9 male to female terminal cable.
While the asynchronous port (on router models with one asynchronous port)
has a DCE female socket, the router’s internal electronics regard the port as
DTE. Signals displayed using the SHOW PORT command therefore have a
DTE perspective. The internal DTE pin roles are listed in Table 36 on page 86.
Table 36: Internal DTE pin roles
Pin Role
2TXD
3RXD
4CD
5GND
6DTR
7CTS
8RTS
Notes:
(1) → Output from router; ← Input to router.
(2) Cable version 1.0.
DB9MDB9F
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
Cable
Pin 9
Pin 6
Pin 5
Pin 1
DB9 Female Pin View
Pin 6
Pin 9
Pin 1
Pin 5
DB9 Male Pin View
DB9 Male
(to router/DCE)
DB9 Female
(to PC/terminal/DTE)
Not connected
→ (TXD)
← (RXD)
← (CD)
(GND)
→ (DTR)
← (CTS)
→ (RTS)
← (RING)
(DCD)
(RXD)
(TXD)
(DTR)
(GND)
(DSR)
(RTS)
(CTS)
(RING)