Setting The Sw1-Sw2 Switches; Led Indications - NEC ux5000 Hardware Manual

Chapter 2 - Blade Installation and Startup
2.7.5.1

Setting the SW1-SW2 Switches

In the following cases, the SW1-SW2 switches (6-8 bits on both SW1 and SW2) should be set to the
ON position (default):
Otherwise, the SW1-SW2 switches should be set to the OFF position. If the last port of the ISDN
terminal is connected to a modular rosette with a termination resistor or when using an ISDN
terminal which provides a termination resistor, refer to the ISDN terminal documentation for further
details.
Switch Name
SW1 1-5
(#1)
6-8
SW2 1-5
(#2)
6-8

2.7.5.2 LED Indications

Live LED
Flashing
(1 second)
Flashing
(100 ms)
2 - 80
When the channel is assigned as a T-Bus Point-to-Point.
●
● With T-Bus Point-to-Multipoint and if the system is connected at the end of the
multipoint.
Switch
Position
S/T Normal - S/T point interface
U
TR ON
TR OFF
S/T Normal - S/T point interface
U
TR ON
TR OFF
LED Indication
Busy LED
(green) (red)
On On
On
Flashing
(1 second)
On
Off
Off On
Off
Flashing
(80 ms on/
off x 3/400
ms off)
Result
Use DSU
Termination Resistor Set
No Termination Resistor
Use DSU
Termination Resistor Set
No Termination Resistor
Operation Status
Blade initializing
Blade assignment refused (system
capacity exceeded or software
version incorrect)
Trouble found during self-
diagnostics routine.
Normal operation
Blocked blade
Downloading firmware
Comments
This is not used in the U.S.
This is not used in the U.S.
Operation Status
At least 1 channel busy
All channels idle
At least 1 channel busy
All channels idle
Chapter 2