Chapter 1. Introduction
Control Port Input
Chain Port Output
8
The control port input provides the following func-
tions:
• RS-232 input from a PC or a modem for control of
the TSU 120
• Chain input from another TSU 120
• Up to 9600 baud operation
• Acts as input for PC control or as input for a chained
connection
• Input for flash memory software downloads
The chain port output provides the following func-
tions:
• RS-232 output to chain control to other TSUs
• Up to 9600 baud operation
• Automatic setup; no user input required
TSU 120 User Manual
61200.129L1-1