67
8 Servicing
Restart, exchange, operating mode
Restarting the system
A restart of the complete system is
known as a Power-ON-Reset.
Switch off the power supply to the
bus line rectifier, wait for a few
seconds, switch the power back on.
The system restarts, and all bus users
are initialized again. The system
programming is retained.
Restoring the as-delivered status
All programmed users in the bus line
rectifier are deleted, the system must
be subsequently reprogrammed.
Procedure
• Switch off the supply voltage to
the bus line rectifier.
• Disconnect terminals Ta and Tb
• Hold down the programming
mode button
• Switch on the power
• The function LED1 flashes evenly
• Wait until the LED1 display
indicates the normal operating
status again.
• Change the address of the bus line
rectifier for around 2 seconds, e.g.
change from address 1 to address 2.
In multiple line systems, ensure that
no address is double assigned.
• Connect bus cores Ta and Tb
• The system is reinitialized.
• Function LED1 flashes again
• When LED1 indicates the normal
ready status again, the system can
be reprogrammed.
Exchanging bus telephones in an
existing system
If an already programmed bus
telephone has to be exchanged, the
following procedure must be
adhered to:
• Switch off the bus line rectifier
voltage
• Disconnect the existing bus
telephone terminals
• Connect the new bus telephone
• Switch the bus line rectifier on
again and wait until the system
ramp-up is completed.
• Program new users (door calls,
internal calls etc.) with manual
programming or using BPS 650-0.
When exchanging existing bus
telephones for the BFS 850-... the
range is reduced to 130 m with a
0.8 mm core diameter.
Exchange BNG 650-... for
BNG 650-...
The existing system
!! programming is retained.
• Switch off the voltage
• Disconnect the BNG 650-... and
connect the new BNG 650-0.
• Hold down the programming
mode button, switch on the power.
• LED1 flashes evenly - wait until the
LED display goes out.
• When the LED1 indicates the
normal operating mode again, the
previous system status has been
restored.
Exchanging an existing
BSG 650-... for a BNG 650-0
The existing system
!! system programming is
retained. When exchanging the
BNG 650-0 in existing systems, the
setting of the operating mode
switch must be noted. The setting
depends on the device types
Switch setting 1 Switch setting
“Reverse compatible” “Norm” or 2
BTS 750-0 BFS 850-.../BTS 850-0
BTC 750-0 BTC 850-0
BNS 750-0 BTS 750-02
BTLM 650-0/ -01 BTC 750-02/ -03
BTLE 050-0 / -01 BNS 750-02
BSM 650-0 BTLM 650-02/ -03
BIM 650-0 BTLE 050-02/ -03
DCA 650-0 BSM 650-02
BIM 650-02
BSE 650-0
BEM 650-0
DCA 650-02
DCI 600-0
installed in the existing system. If
different device types are used
together in an existing installation,
the operating mode must be set to
switch setting 1.
In switch setting 1 the operating
current is limited to max. 300 mA, in
order not to damage the firstgeneration bus users. The
performance features on the InHome bus are not fully available in
switch setting 1. The following
functions are not available:
• Status display of the LED for
feedback from BEM/BSE 650-...
• Doormatic
• Call forwarding
• Parallel calls only possible up to 2
bus telephones
Switch setting 2 has the same
function as the Norm setting.
Operating mode switch
1-Norm-2 BNG 650-0:
In the case of devices which are not
listed here, the position of the
operating mode switch is not
relevant, e.g. bus call button module
BTM 650-...