Avocent CCM1650 Console Cluster Manager
Table of Contents
Hardware
Device is a 1U half-width unit without rack mounting accomodations.
The internal serial port shares the same pinout as the others in the manual (also on underside of device), but operates at 115200. You can see PPCBoot load (and interrupt it), followed by a Linux 2.4.21 kernel.
Linux version 2.4.21-avoppc (jreed@con-tst-linux11) (gcc version 3.2.2 20030217 (Yellow Dog Linux 3.0 3.2.2-2a_1)) #191 Mon May 2 08:44:11 EDT 2005
Jumpers/Headers
- J2
- Norm/Debug, Controls extra output during boot
- J3
- Norm/Mfg, Boots via BOOTP if set to Mfg
- JP5
- Attached to 24C128N EEPROM
- JP13
- Unknown, 2 pins
- JP19
- Test? pins for clock battery (CR2032)
There are some other unpopulated headers. A few large ones 6-16 pins near the CPU and FPGA, and several 2-pin that are unobvious.
Trivia
Avocent made a 48-port version, but it runs on a NSC Geode CPU (probably to handle the gigabit interface).
Configuring the serial ports
I started with setting baud for all the ports. Since most of my stuff will use that.
PORT ALL SET BAUD=115200
This doesn't apply to the console port which is sort of hidden. If you run SHOW PORT ALL. Then you can see it's called CON.
Now you can set the baud, but it does not change it until you end the current session.
PORT CON SET BAUD=115200 QUIT
Reconnect at the new rate, and hit enter 5 times and you should get a prompt if all goes well.