NEC Xen Topaz System Hardware Manual page 74

September 2004
66 -
Swtich Switch
Name Position
SW100 ON Termination
SW200
SW300
SW400
OFF Termination
CN102 ON With S-Bus
CN202
the Feeding
CN302
CN402 supplied to
the terminal.
OFF With T-Bus
the Feeding
Power is not
ISDN BRI CONNECTOR (RJ45) T-BUS CONNECTIONS
Result
This switch should be set to ON:
resistor is
1. When T-Bus with Point-to-Point is
ON
selected.
2. When T-Bus with Point-to-Multipoint
is selected and if the Topaz system is
not connected to the last port of the
Bus connection, this switch should be
OFF.
3. When S-Bus is selected.
When T-Bus with Point-to-Multipoint is
resistor is selected and if the Topaz system is not
OFF connected to the last port of the Bus
connection, this switch should be OFF.
If S-Bus is selected, this switch should be
selected, ON if the connected device requires line
power.
Power is
If T-Bus is selected, this switch should be
selected, OFF.
required.
Pin No.
NEC Business Solutions Ltd
Comments
Connections
1 –
2 –
3 TA
4 RA
5 RB
6 TB
7 –
8 –
Installing the Optional Facilities