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Chapter 1: Overview
AT-XEM2-4QS Line Card
Transceivers
LEDs
38
The AT-XEM2-4QS Line Card is shown in Figure 12.
Figure 12. AT-XEM2-4QS Line Card
The card supports the following types of 40Gbps QSFP+ transceivers in
its four ports:
QSFPSR4 transceiver - Maximum operating distance of 150
meters (492 feet) with 12-strand OM4 fiber optic cable.
QSFPLR4 transceiver - Operating range of 2 meters (6.6 feet) to
10 kilometers (6.2 miles) with single-mode fiber optic cable.
QSFP1CU and QSFP3CU direct attach cables - Lengths of 1 and
3 meters, respectively.
QSFP-4SFP10G-3CU and QSFP-4SFP10G-5CU 40Gbps to
10Gbps breakout cables in lengths of 3 and 5 meters, respectively.
Refer to "Breakout Cables" on page 26 for more information.
The LED states for transceivers or direct attach cables in ports on the AT-
XEM2-4QS Line Card are described in Table 13.
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