AT&T IPC-1600 - Definition of IPC-1600 Device Node Names

Definition of IPC-1600 Device Node
Names
Node Names
There are two classes of device node names:
■ ttyis
xyy (for software)
■ ttyih xyy (for hardware).
The x is the board occurrence number. Board numbers are 1 through 7.
The yy is the port number on the IPC-1600 board. Port numbers are 01
through 16.
5-2 IPC-1600 USER’S GUIDE