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Contents
Installation and Maintenance Manual Nimbra 300 Series
©2006 Net Insight AB, All rights reserved
The front panel provides the following interfaces for all Nimbra 300 series
switches:
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Power A and Power B: two redundant -48V DC power inputs, each one
equipped with a grounding pin, located above respective power input.
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Gigabit Ethernet, a slot for SFP transceiver and green LED indicators which
indicate Tx activity, Rx activity and Link Integrity conditions.
Note:
One SFP (Small Form factor Pluggable) transceiver
must be inserted in the fixed Gigabit Ethernet Access port to
complete the port and make it operational.
Figure 3. Highlight of Gigabit Ethernet fixed interface in the Nimbra 340
switch and fixed trunk interfaces in the Nimbra 360 switch.
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RESET push-button and Status LED: pressing the reset button causes the
Nimbra 300 series switch to restart. The LED will be lit during reboot and
then turned off. The Status LED shows status of the equipment; in special
operating modes, it works as a special purpose indicator. The position of the
RESET button and the status LED are different in Nimbra 340/340-HD and
Nimbra 360, but the functionality is unchanged.
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Control Interfaces
The 10/100 Mbit Ethernet interface is located at the bottom RJ45 connector
with integrated LED indicators. The green LED reflects Link Integrity
status, while the amber one shows transmission speed (10 vs. 100 Mbit/sec).
The RS232 console interface is located at the top RJ45 connector.
The position of the Control Interfaces are different in Nimbra 340/340-HD
and Nimbra 360 (see pictures above).
The front panel provides the following interfaces for Nimbra 340 and
Nimbra 340-HD:
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Sync ports
Sync In: An external sync reference source (2.048 or 1,544 MHz, compliant
with ITU-T G.703) may be connected to this 75 Ohm, BNC connector.
Sync Out: A sync reference output (2.048 MHz) for external equipment is
available on this 75 Ohm, BNC connector.
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ALARM connector, featuring 6 static alarm inputs and one static alarm
output for monitoring of alarm indications within an installation. All alarm