Specifications

Hardware Reference 17
C613-03064-00 REV E
Switch Cables and Loopback Plugs
This section describes how to make cables for connecting the switch’s
interfaces to networks, terminals, and printers. How to make loopback plugs
for testing switch interfaces is also described.
Terminal and Modem Cables
Figure 6 on page 17 shows how to wire cables to connect a standard VT100
compatible terminal, or a modem, to the switch’s
RS-232 Terminal Port.
Figure 6: Pin wiring diagram for a standard DB9 male to female terminal cable.
Notes:
(1) → Output from switch; ← Input to switch.
(2) Cable version 1.0.
DB9MDB9Fsw
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 switch/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)