User's Manual

Rev B

to set up telephone links from the dam sites, where the density of data will be highest, and

public phone lines are available. Each receiver will have its own modem and its own dedicated

line and will operate in "auto-answer" mode, so that you may call it at any time from your

computer and observe real-time performance, modify system parameters or download data.

REMOTE OPERATION BY TELEPHONE

With your receivers running in auto-answer mode, you may access them by

phone using Lotek's HOST Support Software. The receiver must be connected, via

its serial port, to a Hayes compatible 1200 or 2400 baud modem. This connection

requires a standard 9 to 25 pin cable, not the "null modem" cable which you use for

direct connection to your computer. Before starting the program which you are

going leave in unattended operation (e.g., any of several versions of Event_Log or

Code_Log) , press

SHIFT COMM

to access the communications main menu. If you haven't already done so, you must

set the receiver's baud rate to match the preference of the modem (1200 or 2400

baud). To do this, select

1)Configure

then, from the configuration submenu,

1)Baud

Finally, use the UPARROW and DOWNARROW keys to select the desired speed, and the

SHIFT key to enter (verify) your selection. Now back up (ESC) to the main COMM

menu and select

4 )Autoanswer

The modem's "AA" light (if there is one) should come on and stay on, and the receiver will

report "autoanswer on" if the operation is successful. The receiver will now be in automatic

answer mode, no matter which program it is running. To call the receiver from a remote

computer, start the HOST program and select Terminal control from the main menu. Then use

the DIAL NUMBER command to call the receiver's modem. (Your host computer must of course

be connected to its own modem, which may be either internal or external, and the HOST

software must be configured for the appropriate baud rate). When the dial sequence is complete

the call is initiated and, after one or two rings, the receiver's modem will answer the phone and

the receiver will switch into terminal mode (see the WILDLIFE HOST user's manual that

accompanies HOST software). When you are finished working with the receiver you use the

HOST's HANG UP command, which terminates the call and causes the remote receiver to return

to "local" control, while remaining in autoanswer mode, ready to take another call.