Switch Settings - Aastra NeXspan C Installation Manual

Integrated dect service
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5.2.5 Switch settings

Flash Eprom programming switches
CA1.2 = ON -> Flash Eprom programming (card not operational)
CA1.2 = OFF -> Card operational Mandatory Position
100 Ohm adaptation straps
CA1_i.1 = ON and CA1_i.2 = ON
CA1_i.1 = OFF and CA1_i.2 = OFF
where i: Value from 0 to 15
Remote power supply configuration straps
Swi_P* positioned at 1.2 = Remote power supply ON
Swi_M* positioned at 1.2 = Remote power supply ON
Swi_P* positioned at 2.3 = Remote power supply OFF
Swi_M* positioned at 2.3 = Remote power supply OFF
where i: Value from 0 to 15
"_P" : + 40 V or +48 V
"_M" : - 40 V or -48 V
The two switches must be positioned on the same side: 1-2 or 2-3
DECT configuration switches
Top side
CA1.1 = ON -> Master mode
CA1.1 = OFF -> Slave mode
Bottom side
CA2.4 = ON -> no M bit in S frame
CA2.4 = OFF -> S frame M bit in service (base station synchronization)
The CA2.4 switch must be set to OFF to operate with DECT base stations.
The CA2.4 switch set to ON enables use in CBT mode (transparent B channel) for videophones,
routers and modems. In this case, there is no M bit in the S frame for all the card equipment and
it is not possible to equip synschronised DECT base stations with the M bit.
V11 clocks have 100 ohms adaptation resistors that must be connected:
CA2.1 = ON -> resistor on SYN pair
CA2.2 = ON -> resistor on SYNA pair
CA2.3 = ON -> resistor on SYNB pair
Note: DECT base stations and S0 terminals cannot be combined on the same LDS board
(DECT base station/S0 equipment combinations not allowed).
AMT/PTD/PBX/0020/2/4/EN
-> Access adapted 100 Ohms
-> Configuration for Y bus
Factory setting
01/2007
(do not use for base stations)
Page 99

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