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Compliance Statements

423-050-00-EN, Revision 3

Published: 2023-05-05

FCC Class A

This equipment has been tested and found to comply with the limits for a Class 

A digital device, pursuant to part 15 of the FCC Rules. These limits are designed 

to provide reasonable protection against harmful interference when the 

equipment is operated in a commercial environment. This equipment generates, 

uses, and can radiate radio frequency energy and, if not installed and used in 

accordance with the instruction manual, may cause harmful interference to radio 

communications. Operation of this equipment in a residential area is likely to 

cause harmful interference in which case the user will be required to correct the 

interference at his own expense.

VCCI–A

Note: 

Package can contain other ordering options. See the Ordering Guide for more details.

Attention: 

This product, like all electronic products, uses semiconductors that  

can be damaged by electrostatic discharge (ESD). Always observe appropriate 
precautions when handling.

Warning: 

Potential for damage to equipment or personal injury.

Conventions

Attention: 

This symbol indicates that the surface is hot and to use caution to 

avoid touching it.

Protective grounding point

  この装置は、クラスA情報技術装置です。この装置を家庭
環境で使用すると電波妨害を引き起こすことがあります。こ
の場合には使用者が適切な対策を講ずるよう要求されること
があります。

Package Contents

Unit Description

Skylight Flex 25™

HARDWARE INSTALLATION GUIDE

Special considerations

Front Panel (With Synchronization Option)

Basic Contents

•  Unit (1x) 
•  Power Kit Accessories (1x):

 

¯

  DC Unit: 2x Input Mating Connectors

 

¯

  AC Unit: 1x Power Cord Retainer Clip

•  This Hard Installation Guide (1x)

System Ventilation 
Holes

Fresh Air Intake

Synchronization IN/

OUT (Optional)

3x SMA Connectors: GNSS Antenna Input, Sync IN & Sync OUT

Management Port

1x RJ45 Connector (10M/100M/1GbE)

Console Port or Dry 

Contact Inputs

1x RJ45 Connector (RS-232 or 2 Dry Contacts) 

Note:

 Cannot be used at the same time.

Console Port

1x USB Mini-B Connector (USB 2.0)

Traffic Ports

4x SFP28 Connectors (1/10/25GbE)

Auxiliary Port

1x SFP10 Connector ((1/10GbE)

Reset Button

System Reset 

Note: 

Press the RST button for > 5 seconds to reset the unit to 

factory defaults.

Synchronization 

LED (Optional)

ANT (Green):  

-ON: GNSS is enabled and is locked on satellite

-BLINKING: GNSS is enabled and searching for satellite  
SYNC IN (Green):

-OFF: No Synchronization Input Detected

-ON: Synchronization Input Detected
SYNC OUT (Green):

-OFF: Synchronization Output De-Activated

-ON: Synchronization Output Activated
ALM (Red):

-OFF: No Sync. Module Alarm Condition

-ON: Sync. Module Alarm Condition

MIN MAJ CRIT LED

Minor (Yellow), Major (Red) or Critical (Red) alarm condition:
OFF: No Alarm

ON: Alarm Condition

Status LED (Green)

ON: Normal operation 

Flashing: The unit is booting

Power LED (Green)

ON: Normal operation

Link LED (Green)

ON: Link is active / OFF: Link is inactive

Activity LED 

(Green)

OFF: No Tx/Rx Activity

BLINKING: Port is receiving/transmitting data

Instalations where a unit with the GNSS may be exposed 

to voltage in excess of 10kV, additional protection, such as 

external surge suppressor, may be necessary.

PIN #

Signal

1

Dry Contact#1

2

Not Connected

3

RS323 TX Data

4

Ground

5

Ground

6

RS232 RX Data

7

Not Connected

8

Dry Contact#2

The Dry Contacts Interface is strictly Safety Extra 

Low Voltage (SELV).

Note: 

See the User Material for more details.

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