Communications Specialties Pure Digital FIBERLINK 3800 Series Руководство пользователя - Страница 9
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Печатать страницуIndicator LEDs and Alarm Circuitry
The Pure Digital Fiberlink 3800 Series transmitters and receivers have integral
indicator LEDs that monitor the state of the unit. Their status is as follows:
POWER (Tx & Rx): (Green) Indicates that correct power has been applied.
LINK (Tx):
LINK (Rx):
ALARM (Tx & Rx): ON: Video present (Only on rack card version)
The card cage unit also provides an output to drive a model 6020 Alarm Sens-
ing Module which provides an audible tone and activates a set of contacts for
external signaling purposes.
OFF: Indicates no video detected on input BNC and no
active data detected to or from transmitter unit.
STEADY GREEN: Indicates video detected on input BNC
and no active data detected to or from transmitter unit
ON BLINKING OFF: Indicates video detected on input
BNC and active data detected to or from transmitter unit.
OFF BLINKING ON: Indicates no video detected on in-
put BNC and active data detected to or from transmitter unit.
OFF: Indicates no video detected over fiber and, as a
result, no video present on output BNC. No active data
detected to or from receiver unit.
STEADY GREEN: Indicates video detected over fiber and,
as a result, video present on output BNC. No active data
detected to or from receiver unit.
ON BLINKING OFF: Indicates video detected over fiber
and, as a result, video present on output BNC. Active data
detected to or from receiver unit.
OFF BLINKING ON: Indicates no video detected over
fiber and, as a result, no video present on output BNC.
Active data detected to or from receiver unit.
OFF: Video not present (Only on rack card version)
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