Owner manual

017-220-J0 Rev B

6.2 Communicating with the RS-232 interface

6.2.1 Wiring the RS-232 port

The Alpha Micro Secure’s front panel has a DE-9 female connector. When connected to a PC with Windows

HyperTerminal or other terminal emulation software, the Alpha Micro Secure can be remotely monitored and

controlled with it’s command-line system. The Alpha UPS Monitor provides a Windows or web browser type of

control.

Procedure

1. Connect a 9-pin, fully shielded, straight-through DE-9 to DE-9 connector cable between the computer’s port

and the Alpha Micro Secure’s port.

2. Conﬁgure the communications parameters to the values shown in the terminal set up table below.

Figure 9 — RS-232 pin connections

Table C — Terminal Set Up Table

Emulation Type

VT 100 or

Compatible

Backspace N/A

Duplex Mode Half Duplex Break Length N/A

Xon/Xoff Flow Control None Emulation Type N/A

RTS/CTS Flow Control Off Communication Parameters

Line Wrap On Handshaking Software Handshaking

Screen Scroll On Baud Rate 2400 bps

CR Translation CR Data Format 8-bit Data, No Parity, 1 Stop Bit, No Flow Control.