[SunHELP] serial cable

[Steve Wingate]

I need to get a cable to connect my laptop to a Sun E450's serial port,
the kind with the RJ45-DB25 or RJ45-DB9 connectors and a flat UTP wire
running in between. I have plenty of the cables at work, from Cisco
devices and such, but it seems the connector doohickeys I have tried are
incompatible. Are there different kinds of connectors? If I want to go
out and buy one what do I need to ask/look for? TIA.