FLEX Overview

FLEX Message Word Definitions

CAPCODE TYPE

Example CAPCODEs are shown in Table A-22. The CAPCODE type can be any of “A” through “L” or “U” through “Z”. The CAPCODE types “A” through “L” indicate that the standard rules are used to derive the assigned frame and phase information from the address field. (See Standard Frame and Phase Embedding Rules on page A-25.) For these CAPCODE types, the battery cycle (indicated as a “b” in example 1) is indicated by a single decimal digit “0” through “7” preceding the CAPCODE type. When the FLEX standard battery cycle of 4 (16-frame cycle) is used, the battery cycle digit is not required (see example 2).

The CAPCODE types “U” through “Z” indicate that the standard frame and phase embedding rules were not used and additional information is required. The phase assignment can be derived from the CAPCODE type, as described in Table A-23 on page A-25. The 3-digit decimal frame assignment “000” through “127” (indicated by “fff” in example 3) and single digit decimal battery cycle “0” through “7” (indicated as a “b” in example 3) may precede this CAPCODE type. The frame and battery cycle fields are not required. When they are not included (see example 4), the paging device or the subscriber database must be accessed to determine the assigned frame and battery cycle.

The extended CAPCODE is a regular CAPCODE with a 10-digit address field and preceded by an extra alphabetic character “P” through “S”. These CAPCODEs are used to provide additional information required for roaming devices.

Table A-22 FLEX CAPCODE Examples

By using the convention of 7 digits to represent Short addresses, 9 digits to represent some of the long addresses in set 1–2, and 10 digits to represent the balance of long addresses, it is possible to differentiate between the different types of addresses. The range of the decimal address field consists of the numbers 1 through 5,370,810,366 where Short and other single code word addresses fall below 2,031,615 and Long addresses are above 2,101,248. The goal in displaying a CAPCODE is to use the shortest form possible. Even though the non-standard form could represent a standard assignment, the standard form is chosen to indicate that it is a standard assignment. All CAPCODE forms, except example 4 in Table A-22, contain the information required to send a message to a subscriber unit.