Allied Telesis AT-FAN08, Installation Manual

Page: 25 / 214

AT-SBx908 GEN2 Installation Guide for Virtual Chassis Stacking
25
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 - Has a maximum operating distance of
150m (492 ft). Requires 12-strand OM4 fiber optic cable.

AT-QSFPLR4 transceiver - Has an operating range of 2m (6.6 ft) to
10km (6.2 mi). Requires single-mode fiber optic cable.
 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 4.
Table 4. 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.