Sonnet echo express SE II User Manual page 11

Chapter 3 – PCIe Card Installation and Chassis Setup Steps
13. Turn the Echo chassis right-side-up.
14. Connect the supplied Thunderbolt cable between either Thunderbolt
port on the Echo chassis and a Thunderbolt port on your computer,
or other Thunderbolt device in the chain connected to the
computer (Figure 7). If you are daisy chaining additional
Thunderbolt devices, connect another Thunderbolt cable
between the downstream device and the open Thunderbolt
port on the Echo chassis.
15. Using a Phillips screwdriver, secure the Thunderbolt cable(s) to
the Echo Express SE II with the supplied Thunderbolt cable lock
(Figure 7). Note that if you are using an optical Thunderbolt cable,
the supplied Thunderbolt cable lock is not compatible, and you
should skip to the next step.
15. Connect the included power cord between a wall outlet or power strip
and the power adapter; verify the connector is plugged in securely. Note
that the power adapter's power indicator will light at this time.
16. Connect the power adapter cable to the Echo Express SE II's 12V power
socket. Note that the power indicator on the Echo Express SE II chassis
will not light until the computer, and any other Thunderbolt device
connected between it and the Echo chassis, is powered on.
7
Figure 7