May 2001
System Hardware Manual
5 - 163
A6-32
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5.4.3
Switch Settings
The following table indicates the default switch settings for
the VRS(4)-U13 ETU.
5.4.4
LED Indications
Live LED indications are listed below.
✆
Blinking Red
Normal Operation
✆
Steady Red
Operation Stopped (power still on)
✆
Off
No Power
BSY 1~4 indications are listed below.
✆
Steady Red
Channels 1~4 are busy with replay/
record or detecting DTMF signals
✆
Off
Channels 1~4 are idle
5.4.5
Connectors
The following connector is located on the VRS(4)-U13
ETU.
✆
CN1
Connects to the backboard
5.4.6
Pins
There are two jumpers labelled SP1 and SP2 located on
the top right of the VRS ETU. These are for maintenance
purposes. Do not change the factory default settings on
these pins. Pins 2 and 3 are to remain short-circuited.
Table 5-14 VRS(4)-U13 ETU Default Switch Settings
Switch
Setting
Description
SW1–1
SW1–2
SW1–3
SW1–1
SW1–2
SW1–3
Record decibel
adjustment
Off
Off
Off
0 decibels (default)
On
Off
Off
1 decibel
Off
On
Off
2 decibels
On
On
Off
3 decibels
Off
Off
On
4 decibels
On
Off
On
5 decibels
Off
On
On
6 decibels
On
On
On
7 decibels
SW1–4
On
Record Gain
Off
Record Pad (default)
SW2
N/A
Test Switch
and
Reset Switch
Содержание Xen Master
Страница 1: ...System Hardware Manual NEC Australia Pty Ltd A6 324000 642 01 Release 4 0 May 2001...
Страница 37: ...May 2001 System Hardware Manual 2 19 A6 324000 642 01 Release 4 0 May 2001 Figure 2 1 System Block Diagram...
Страница 123: ...May 2001 System Hardware Manual 5 105 A6 324000 642 01 Release 4 0 May 2001 Figure 5 7 CPUB U13 ETU...