Connecting to COM Port for Local Management
Enterasys NAC Controller Hardware Installation Guide 4-17

Figure 4-14 Connecting to a Modem

Adapter Wiring and Signal Assignments

1UTP straight-throughcable with RJ45 connectors 4Local modem
2RJ45 COM port 5Remote modem
3RJ45-to-DB25 modem adapter 6PC
COM Port Adapter Wiring and Signal Diagram

RJ45 DB9

Pin Conductor Pin Signal
1 Blue 2 Receive (RX)
4 Red 3 Transmit (TX)
5 Green 5 Ground (GRD)
2 Orange 7 Request to Send (RTS)
6 Yellow 8 Clear to Send (CTS)
RJ45 Connector (Female)
81
Pins
DB9 Connector (Female)
Pins
15
69