PlantLinc
PLR5000 User’s Guide
P/N 161-09888-001
DATA-LINC
Group
9
Main Menu Option (2): Edit Call Book
The Call Book is an innovative feature in the PLR5000 that offers both security and flexibility in use. The
Call Book accomplishes this by allowing the user to determine with which other PLR5000s a given radio
modem will communicate, based on the Call Book numbers for both the Master and remote. The radio
modem’s Call Book number is encoded in the microprocessor and identified on a label on the modem. The
instructions provided in this section are for point-to-point mode only. Use of the Call Book for multipoint
systems is explained later in this chapter. For two PLR5000 radio modems to communicate in point-to-point
mode, three events must occur:
1. The call book number for the Master must be listed in the Remote’s Call Book.
2. The call book number for the Remote must be listed in the Master’s Call Book.
3. The Master must be programmed to call the Remote.
As shown in Figure 3, the Call Book allows users to set up a list of up to 10 PLR5000s with which to
communicate. Designate up to 2 Repeaters to be used in communicating with a given radio modem, and tell
the Master which Remote to call. To direct the Master to call a Remote, the Remote must be in the Call Book
Menu. A specific remote may be called by entering (C) at the prompt, followed by the menu number
corresponding to that remote. To call any available remote in the list, the user should enter C and then A (for
All).
Note
: To call a Remote through one or two Repeaters, you must call that remote directly (as opposed to using
the Call All option). When Call All is selected the Master is not able to connect with any Remotes
through Repeaters. This is because the Master calls every remote in the list when instructed to call all
and will connect with the first remote to respond. When calling through a Repeater, the Master must first
call that Repeater and establish a communications link with it prior to making contact with the Remote.
