User guide
1640 Icon LCD Keypad 25
used to create, modify or delete user access codes (see 
page 25) that are assigned to Area 1. 
Master Code 2 is permanently assigned to Area 2 (except 
when partitioning is disabled, in which case Master Code 2 
will be assigned to Area 1) and can be used to create, modify 
or delete user access codes  that are assigned to the same 
area (see Programming Access Codes on page 25). 
Master codes cannot modify or delete user access codes 
assigned to both areas. Only the System Master Code can 
modify or delete user access codes assigned to both areas. 
5.3 Duress Code
If you are forced to arm or disarm your system, entering the 
access code assigned to User 048 will arm or disarm the 
system and immediately transmit a silent alert (Duress Code) 
to the monitoring station. 
This option must be enabled by your installer.
5.4 Programming Access Codes
Your system can use either 4- or 6-digit access codes (see 
Access Codes on page 32), where each digit can be any 
value from 0 to 9. Six-digit codes are considered more 
difficult to “crack” and therefore, more secure. Avoid 
programming simple or obvious access codes, such as your 
telephone number, address or codes such as 1234.
1640-EU03.fm Page 25 Thursday, October 5, 2006 3:50 PM










