Allied Telesis AT-SB*81CFC960, Installation Manual

Page: 58 / 356

Chapter 2: Ethernet Line Cards
58 Section I: Hardware Overview
AT-SBx81XLEM/Q2 Expansion Module
The AT-SBx81XLEM/Q2 Module, shown in Figure 28, is an expansion
module for the AT-SBx81XLEM Line Card. It installs in the slot in the card.
Figure 28. AT-SBx81XLEM/Q2 Expansion Module
The features of the module are listed here:
 Two slots for 40Gbps QSFP+ transceivers
 Supports AT-QSFPSR, AT-QSFPSR4, and AT-QSFPLR4
transceivers

Supports AT-QSFP1CU and AT-QSFP3CU direct connect cables

Port Link/Activity (L/A) LEDs

Jumbo frame support up to 10240 bytes
Note
The AT-SBx81XLEM/Q2 Module supports revision B of the AT-
QSFPSR4 transceiver. It does not support revision A. The revision
level of the transceiver is printed on the transceiver label, after the
serial number. You can also display it with the SHOW SYSTEM
PLUGGABLE DETAIL command in the AlliedWare Plus operating
system.
For a list of supported transceivers, refer to the SwitchBlade x8100 data
sheet on the Allied Telesis web site.
LED
Each slot has one LED. The states of the LED are described in Table 15.
Table 15. QSFP+ Slot LEDs on the AT-SBx81XLEM/Q2 Expansion
Module
LED State Description
Solid Green
The QSFP+ transceiver in the slot has
established a 40 Gbps link to a network device.