Chapter 1: Overview
26
AT-XEM2-4QS Line Card
The AT-XEM2-4QS Line Card has four QSFP+ transceiver slots that
support the following types of 40Gbps transceivers:
AT-QSFPSR4 transceiver - Requires 12-strand OM4 fiber optic
cable and has a maximum operating distance of 150m (492 ft).
AT-QSFPLR4 transceiver - Requires single-mode fiber optic cable
and has an operating range of 2m (6.6 ft) to 10km (6.2 mi).
AT-QSFP1CU and AT-QSFP3CU direct connect cables in lengths
of 1 and 3 meters, respectively
The LED states for the QSFP+ transceiver slots on the AT-XEM2-4QS
Line Card are described in Table 5.
Table 5. Link and Activity Status LEDs for the AT-XEM2-4QS Line Card
State Description
Solid Green The transceiver has established a
40GBase link to a network device.
Flashing Green The transceiver is transmitting or receiving
data.
Off Possible causes of this state are listed
here:
- The slot is empty.
- The transceiver has not established a
link to a network device.
- The LEDs are turned off. To turn on the
LEDs, use the eco-friendly button.
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