Panel Descriptions; Table 1 7870T Transmitter Leds; Table 2 7870R Receiver Leds - Foxcom 7870 Installation And User Manual

1.3 Panel Descriptions

1.3 Panel Descriptions
On the Front Panel of the 7870 IFL units are two LEDs. Both LEDs
should be on when the unit is in use. T
The LEDs on the Front Panel of the
are:
LED Name
Laser
RF

Table 1 7870T Transmitter LEDs

LED Name
Opt.
RF

Table 2 7870R Receiver LEDs

page 4
LED Function
Indicates if the laser is functioning
Indicates RF signal level
• Green: Input level is within 3 dB of specification (level is -2 to -28
dBm)
• Amber: Input level exceeds maximum recommended level by 3
dB or more (level is >-2 dBm)
• Off: Input level is below minimum recommended level by 3 dB or
more (level is < -28 dBm
LED Function
Indicates if the optical input power is above the minimal level [≥3 dBm]
Indicates RF signal level
• Green: Input level is within 3 dB of specification (level is -2 to -28
dBm)
• Amber: Input level exceeds maximum recommended level by 3 dB
or more (level is >-2 dBm)
• Off: Input level is below minimum recommended level by 3 dB or
more (level is < -28 dBm
Transmitter and Receiver
7870
Document no. 93-005-35-C5