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-rw-r--r--quick-start.md2
1 files changed, 1 insertions, 1 deletions
diff --git a/quick-start.md b/quick-start.md
index 5ddb275..75f1ca7 100644
--- a/quick-start.md
+++ b/quick-start.md
@@ -106,7 +106,7 @@ PON adopts Wavelength Division Multiplexing (WDM) technology, facilitating bidir
To separate upstream/downstream signals of multiple users over a single fiber, PON adopts two multiplexing mechanism:
- In downstream direction, data packets are transmitted in a broadcast manner;
-- In upstream direction, data packets are transmitted usisng TDMA.
+- In upstream direction, data packets are transmitted using TDMA.
{% include image.html file="quick-start/optical-fiber-transmission-windows.svg" alt="Fiber Optic Operation Wavelength and Window" caption="Fiber Optic Operation Wavelength and Window" %}