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3CC08991ATAA TQ BJA 01
Issue 01 -- March 2004
2.7.2 -- Light IDU
2.7.2.1 -- Light IDU (19” version)
The Light IDU version has only a “Connector” panel (Figure 19) with:
--
switches and a software reset button,
--
display components for ascertaining the operational state of the equipment at a glance,
--
connector ports.
It is equipped with the items listed in the table below.
Figure 19 - Controls, indicators and connectors on the Light IDU
ITEM
TYPE
FUNCTION
ODU
Female N
connector
Link with the ODU. This connector includes a protective surge arrestor.
Red LED
URG: Urgent alarm present
Red LED
NURG: Non--urgent alarm present
Yellow LED
ATT: Alarm attended, acknowledged by the operator
Yellow LED
MAN: Remote control indicator
Green LED
IDU: No IDU alarm or IDU configuration is valid
Green LED
ODU: No ODU alarm or ODU configuration is valid
F *
Female 9--way
Sub--D connector
Interface with supervisory PC
NMS 1 *
NMS 2 *
Female 9--way
Sub--D connectors
Supervision network bus interfaces.
I/O 1-4 *
Female 37--way
Sub--D connector
Tributaries 1 to 4
ESC 3 /
ALARM I/O *
Female 37--way
Sub--D connector
S
ESC Nº 3
interface
S
Remote controls and telesignalling (TS/TC)
IDU-ACO/ODU
Momentary action
two--position switch
S
On startup: select the IDU or ODU configuration if the configuration is
lost
S
In operation: ACknOwledge (Acknowledgement of urgent alarms/LED
test).
RST
Pushbutton
Software reset.
DC 48V or 24V *
Male 3--way Sub--D
connector
Primary power supply input (24 V or 48 V DC).
ON/OFF
Stable two--position
switch
For powering the unit up/down
The green LED to the left of this switch indicates that the unit is powered up.
* Connectors with pin--out details in section 3 and in Appendix 6.
Summary of Contents for 9400 UX
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