Telecast Adder TD161, Инструкция по эксплуатации

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Telecast Fiber Systems
Status Indicators
INTERNAL EXTERNAL
T elecast
Fiber Systems, Inc.
T D 1 6 1

Audio Tap/Drop Module
1
0
POWER
MADE IN USA
STATUS FIBER COAX SIGNAL OL
EVEN CHANNEL
SIGNAL OL
ODD CHANNEL LINK POWER SUPPLY
OUTPUT SELECT
1,2
3,4
5,6
9,10
7,8
11,12
13,14
15,16
MUTE
MUTE
OUTPUT SELECT
1,2
3,4
5,6
9,10
7,8
11,12
13,14
15,16
MUTE
MUTE
Figure 5: Front Panel
There is a Signal LED and a red OL Overload LED for each odd and even channel.
Signal LED which illuminates green at the presence of a digitized audio signal that
the TD161 will demultiplex from the fiber.
OL LED which illuminates red when the demultiplexed signal calls for greater
than the +18 dBm maximum that can be delivered by the output circuits of the
TD161.
Link
Three LEDs convey the signal status:
Coax LED which illuminates green when the signal reaching the TD161 is on the
coaxial input.
Fiber LED which illuminates green when the signal reaching the TD161 is on the
optical fiber input.
Note: The TD161 input will automatically switch to the input that first exhibits a
signal.
Status LED which illuminates green when the TD161 has locked onto an input and is
able to tap and drop audio and data signals. Illuminates red at the absence of
incoming data.
Power Supply
Power Supply LEDs Internal and External indicate the source of DC power.
Internal Illuminates whenever power is being drawn from the backup battery in
the TD161. This light is normally off. If illuminated, line power has been
lost.
External Illuminates whenever the Power switch is in the 1 (up) position and the
power supply is operating.
Caution: If external power fails, take immediate steps to restore power. A fully
charged battery will run the TD161 for only about 20 minutes.
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