Selection Of A Or B-Bus; Elise2 Controlling The Communication On The A/B-Bus - ASCOM ELISE2 Installation Manual

Installation Guide
ELISE2
4.3

Selection of A or B-bus

When modular bus cabling is used for connection of the System 900 bus the A-bus is used
default. To use the B-bus, remove the 0 ohm resistors R111 and R112 from the circuit
board and solder jumper points S1 and S2 (R111 and R112 are situated on the bottom
side of the circuit board). See
Bottom side
Figure 6. Jumper points for adjusting the ELISE2 unit to use the System 900 B-bus
4.4

ELISE2 controlling the Communication on the A/B-bus

Depending on the software application on the ELISE2, it can be used to control the
communication on the A-bus, i.e. the Central Unit is not used for communication control.
This can be useful when System 900 is not used for messaging but only to communicate
with, for example, an Alarm Module or Output Module.
The same information that can be received when the ELISE2 is connected to an A-bus with
Central Unit, can also be received when it is controlling the communication. Examples of
information is input activity and pagings from the Alarm Modules (see respective software
application documentation for more information about the possibilities). Alarms and
Mobile data from handsets can be transferred from the ELISE2 to modules connected to
the A-bus. The ELISE2 does not have any other of the Central Unit functionality, for
example the possibility to address Pocket Units over the A-bus or handle absence
information received from Charging Racks.
2005-06-15 / Ver.G
figure 6 on page 11.
IC1
J4
J22
1
IC24
J9
S3
LED6
LED7
J7
RS232:3
J20
ETH
1
instead of the A-bus.
Top side
SW4
LED1
J1
SW2
BAT1
SW3
J2
J10
J15
S1
J8 J11 J12 J13
S2
RS232:2 RS232:1 900 900
4 1 4 1 2 1 2
J5 J6 J14 S4
J24
S5
S1
S1
S2
S2
TD 92232GB
11