NEC Xen Topaz - Page 74

September 2004 NEC Business Solutions Ltd
66 - Installing the Optional Facilities
Doc. No. 8846 - Release 1.1 September 2004
SW100
SW200
SW300
SW400
ON Termination
resistor is
ON
This switch should be set to ON:
1. When T-Bus with Point-to-Point is
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.
OFF Termination
resistor is
OFF
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.
CN102
CN202
CN302
CN402
ON With S-Bus
selected,
the Feeding
Power is
supplied to
the terminal.
If S-Bus is selected, this switch should be
ON if the connected device requires line
power.
OFF With T-Bus
selected,
the Feeding
Power is not
required.
If T-Bus is selected, this switch should be
OFF.
ISDN BRI CONNECTOR (RJ45) T-BUS CONNECTIONS
Pin No. Connections
1–
2–
3TA
4RA
5RB
6TB
7–
8–
Swtich
Name
Switch
Position
Result Comments