Old NTI KVM Setup
Older NTI KVMs are a great way to have a high density of a wide variety of older machines. The older (pre-USB) models of NTI KVMs supported Sun Type5 interfaces, PS/2, and ADB keyboard & mouse, as well as a wide variety of video inputs. However, I have found very little information about them online. This document serves to consolidate my knowledge of them. I haven't found an actual manual for these KVMs, only the newer ones. The information presented here is from a combination of experimentation, and piecing together bits of information from what manuals are available.
I currently have two different models of essentially the same kvm:
NTI made 2, 4, 8, and 16 port versions in this generation of KVMs, some are in a matrix configuration allowing multiple consoles access to any of the attached CPUs. They also came with HD15/VGA or 13W3 video connectors. I believe there is also a DB15/mac video connector version.
The -R indicates rackmountable.
The -X designation appears to indicate it has the LCD screen as seen above.
The DIP switches configure what keyboard/mouse protocol to use, as well as configuring the daisy chaining of KVMs.
To configure the Keyboard/Mouse:
To configure the KVM for daisy chaining, the KVMs are arranged in a master/slave relationship. The master will need to know how many slave KVMs of how many ports it has, and the slaves need to know what their unit number is, all configured via the DIP switches. Additionally, slave KVMs need to have their output connected to the master's inputs, in order. For instance, the first slave gets connected to the master's CPU1 input, second slave gets connected to the master's CPU2 input, etc. After the slave video/keyboard outputs have been connected, the remainder of the master's inputs can be used normally.
DIP switch 1 indicates master/standalone or slave status:
For Master operation, switches 5 and 6 indicate how many ports the slaves have. For Standalone or Slave operation, these should be off:
|4 port Slaves||off||on|
|8 port Slaves||on||off|
|16 port Slaves||on||on|
Finally, the master needs to know how many slaves are attached, and the slaves need to know what their unit ID is. This is done the same way. If the KVM is operating standalone, all switches should be off.
|Master||Slave||Switch 2||Switch 3||Switch 4|
|1 slave||Unit 1||off||off||off|
|2 slave||Unit 2||off||off||on|
|3 slave||Unit 3||off||on||off|
|4 slave||Unit 4||off||on||on|
|5 slave||Unit 5||on||off||off|
|6 slave||Unit 6||on||off||on|
|7 slave||Unit 7||on||on||off|
|8 slave||Unit 8||on||on||on|
Since the KVMs allow different Sun/ADB/PS2 keyboards to be connected, and not all of these have the same keys, some keys need to be mapped.
Additional Sun translations:
|SB+Alt or Win Logo||Cmd||Meta|
|SB+Up Arrow||Volume +|
|SB+Down Arrow||Volume -|
The NTI KVMs have female Sun connectors, and use specialty cables to connect to ADB and PS2 systems/keyboards/mice. Sun equipment can connect straight to the KVM. Below are the pinouts of my cables.
Updated April 5 2011
1 2 3 1 2
4 5 6 3 4
7 8 -