GAI-Tronics MRTI 2000 (No. PL1877A) Microprocessor Radio Telephone Interconnect Installation & Service Manual - Manual (Page 64)

PC Programming PL1877A Microprocessor Radio Telephone Interconnect
12/10 58
Programming the Wildcard Code for use with Paging
If you wish to allow only the paged mobile user to answer a page (without direct access), restrict mobile
access to multi-digit access prefix users. Also, disable all standard multi-digit access prefixes.
Determine how many digits, from 1 through 6, you want in the wildcard access prefix.
Determine how the capcode digits or user ID will be encoded in the prefix.
For example, suppose you have decided that wildcard prefixes are to consist of 5 digits, represented by
XXXXX. Since the PL1877A is programmed for multi-mode selective signaling, you want the two-digit
user ID (represented here by YY) to be encoded in the wildcard prefix. This can be programmed a
variety of ways, including:
XXXYY
YYXXX
XYXYX
XYXXY
YXXYX
Fill in the remaining digits with specific or wildcard digits.
Suppose you have chosen YXXYX as the wildcard pattern. You must determine what will be placed in
the locations marked by X. These can be either fixed digits (0–9, A–D) or they may be wildcard digits
(#). Of course, you may also place a mixture of fixed and wildcard digits in this code.
There are numerous possibilities, such as:
Y12Y3
Y 1 # Y #
Y# #\#
Program the required values into the wildcard code.
For the example above, you have chosen Y 1 # Y #•3& the required wildcard structure. This would be
programmed as *\#*#.
Notice the Y digits have been replaced by *. The * is referred to as the capcode wildcard digit since it is
actually a special wildcard digit that is replaced by capcode digits or the user ID digits.
To complete the above example, suppose you have just paged the mobile corresponding to user ID 56.
The telephone user is waiting on a mobile answer, since direct access is disabled. In this situation the
PL1877A doesn’t respond to any mobile access codes except those matching the 51x6x*. Here, x
represents wildcard digits chosen by the mobile user when transmitting the code.