
TD 92232GB
2005-06-15 / Ver.G
Installation Guide
ELISE2
11
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
Figure 6. Jumper points for adjusting the ELISE2 unit to use the System 900 B-bus
instead of the A-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.
011
J7
J20
LED6
RS232:3
ETH
LED7
J2
J10
J16
J15
J4
J13
J12
J11
J8
J24
J14
J6
J5
S3
900
900
RS232:2
RS232:1
S4
S5
S1
S2
IC24
J22
J9
IC1
BAT1
SW4
LED1
J1
SW2
SW3
1
LED2
LED3
LED4
LED5
1
8
1
8
16
2
2
1
1
4
1
4
1
R112 C115 C116 R111
Bottom side
Top side
R112
C115 C116
R111
S1
S2
S1
S2