Multitech MTA128ST Owner's Manual Page 15

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15-IWay Hopper
Installation
2.7 LED Indicators
The MTA128ST has ten LED indicators (Figure 2-3) to report MTA128ST status
and line activity.
Figure 2-3. LED Indicators
Transmit Data. The TD LED flashes when data is being
transmitted (on for a space, off for a mark).
Receive Data. The RD LED flashes when data is being
received (on for a space, off for a mark).
Central Office Link.
On steady: Link with central office is established
(requires correct configuration of SPIDs)
Slow Blink: SPIDs have not been verified with central office
Fast Blink: One SPID has been verified with central office
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