SMSC Most150, Руководство пользователя

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MOST150 Repeater
User’s Manual Copyright © 2010 SMSC UM_MOST150_Repeater_V01_00_XX-1.pdf
Page 13
2.4 Description of Start-up and Shut-down in Detail
2.4.1 Light on in the Main Ring
When the MOST150 Repeater obtains no light on RX it remains in sleep mode (indicated as grey dashed
lines in Figure 2-2) assuming the device itself is powered .
Figure 2-2: Light in Main Ring Step 1
If light is detected on RX in the main ring the MOST150 Repeater switches on. The light is transmitted
back to TX on the main ring, i.e., via an internal loop, and to the TX of the extension ring (indicated by the
orange lines in Figure 2-3). In additon, the MOST signal will be recovered via an internal PLL.
Figure 2-3: Light in Main Ring Step 2