Parameter 60: 4X1 With Parity - Honeywell FBII CP-220A Hookup And Installation Instructions

REMEMBER!
To leave the Programming
Mode at any time, press
the Esc key. Doing so will
return the CP-220A to its
normal operating mode.
Programming changes will
be stored automatically.
PARAMETER 60:
4x1 With Parity
or 4x2 Without
Parity
. You can reach PARAMETER 60 in one of several ways. Press either:
• 6 then 0 , or
• the
NOTE: When the
immediately – not its number.
SLOT 1 FORMAT 4X2 WO/P
Background:
The CP-220A is capable of receiving and processing many popular alarm
Reporting Formats originated at a subscriber's premises (see Appendix B).
One of these formats, known as 4x1 (four by one), contains 6 characters:
• a four-digit Account Number
• a one-digit Alarm Code
• a one-digit Parity Check sent along with the message
NOTE: Typically, this single parity digit contains a number that is derived
through a calculation based on the 5 characters that precede it. The
parity digit accompanies the message (but is not displayed or
printed). When such a 4x1 message is received, the CP-220A
performs the same calculation on the first 5 digits and compares the
result with what was sent as the message's 6th (parity) digit. If they
are identical, it's quite likely that the message was received
accurately.
Using this parity technique allows the receiver to process messages
faster because, unlike the standard 4x1 report, it is not necessary to
send the entire message twice and compare them – a common
message-checking technique.
Another Reporting Format, known as 4x2 (four by two) without parity, also
contains six characters:
• a four-digit Account Number
• a one-digit Alarm Code
• a one-digit Zone Code
This 4x2 format uses no parity checking. As a result, the CP-220A cannot
distinguish between messages received in the 4x1 (with parity) and the 4x2
(without parity) formats because both produce the same number of digits.
Therefore, PARAMETER 60 is used to inform the CP-220A which of these two
formats it's meant to receive. Note that this selection can be made on a slot-by-
slot basis. See Appendix B for additional information on Reporting Formats.
NOTE: PARAMETER 60 will work for REC-11 Line Cards using Version 2.6
or later.
CP-220A Central Station Receiver Section 2: Programming the CP-220A Page 2-55
Hook-Up and Installation Manual
key
is used, the name of the next parameter appears
MM/DD/YY HH:MM:SS