EN
| 9
Bosch Security Systems | 02 February 2004
LTC 8713 Series
|
Instruction Manual
|
Installation
4.4
DIP Switch Settings
The LTC 8713 Series Alarm Port Expander
communicates with the Allegiant series main bay and
the LTC 8540/00 Alarm Interface Unit via RS-232
communications. The LTC 8713 Series Alarm Port
Expander contains internal DIP switches which can be
used to set the communication parameters. The cover
must be removed if the DIP switches need to be
changed from their factory default settings. See Cover
Removal. The following table summarizes the DIP
switch settings and their associated features. Note that
after changing any of the DIP switch settings, the AC
power must be turned off and on before the changes
can take effect.
Figure 2 Location of DIP Switches
4.4.1 DIP Switch Settings
S402 DIP Switch: These settings must match those on
the LTC 8540/00 Alarm Interface Unit.
1
Note that the default baud rate for LTC 8540/00 units starting with
serial No. 1500 changed from 1200 to 19200.
S401 DIP Switch: These settings must match the
"ALARM" Port settings on the Allegiant series main bay.
1
Allegiant default baud rate changed from 1200 to 19200 with
release of CPU software revision 7.1.
1. Make sure power is turned OFF on the
Switch Number
Function
1
2
3
Baud Rate
1
Off
Off
Off
19200 (Factory Default Setting)
Off
Off
On
9600
Off
On
Off
4800
Off
On
On
2400
On
Off
Off
1200
On
Off
On
600
On
On
Off
Reserved
On
On
On
Reserved
4
Handshaking
Off
Disable
On
Enable (Factory Default Setting)
5
6
Alarm Port Expander Mode
OFF
OFF
Alarm Port Expander
OFF
ON
Reserved
ON
OFF
Alarm Port Expander Hub
ON
ON
Reserved
7
8
Reserved
Switch Number
Function
1
2
3
Allegiant
®
System Baud Rate
1
Off
Off
Off
19200 (Factory Default Setting)
Off
Off
On
9600
Off
On
Off
4800
Off
On
On
2400
On
Off
Off
1200
On
Off
On
57600 (Recommended for Hub
Mode)
On
On
Off
Reserved
On
On
On
Reserved
4
Handshaking
Off
Disable (Factory Default Setting)
On
Enable
5
Stop Bits
Off
1 Stop Bit (Factory Default
Setting)
On
2 Stop Bit
6
7
8
Reserved
