Operation; Jp202 Jumper Functions; Jp202 Position 1; Jp202 Positions 2 & 3 - TWR Lighting REDSTAR Manual

3 OPERATION

REDSTAR is factory configured to operate without additional setup, simple apply required voltage.
During initial power up unit will take a few minutes to initialize and receive GPS satellite synchronization.
Alarm condition will clear after initialization indicating system is functioning without fault. REDSTAR will not
come on during the daylight without the photocell receiving required minimum ambient light. (Photocell is
Inside the beacon lens on the opposite side of leveling bubble)
TWR technical service is available 24/7 and can assist you with measurements at (800) 679-8724.
3.1

JP202 Jumper Functions

3.1.1

JP202 Position 1

a) 120 Ohm terminator resistor
i.
ii.
3.1.2 JP202 Positions 2 & 3
a) Bias voltage supply for RS485 A and B signal lines.
i.
ii.
iii.
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Jumper to be installed on beacons that are at the ends of the RS485 communication
bus.
Lights in the middle of the string should not be terminated.
The jumpers are to be installed on the single light installations.
On multiple light installations jumper should only be installed on the light at the end of
the RS485 bus.
Both positions 2 & 3, jumpers must be installed, as loss of communication can occur if
only of them is installed.
RedStar 3122021.docx - 3/17/2021