Castles Technology Co., Ltd. Confidential • All Right Reserved. Pg. 2
WARNING
Information in this document is subject to change without prior notice.
No part of this publication may be reproduced, transmitted, stored in a retrieval system,
nor translated into any human or computer language, in any form or by any means,
electronic, mechanical, magnetic, optical, chemical, manual, or otherwise, without the
prior written permission of Castles Technology Co., Ltd.
All trademarks mentioned are proprietary to their respective owners.
Castles Technology Co., Ltd. Confidential • All Right Reserved. Pg. 3
Revision History
Version
Date
Descriptions
Author
1.0
2026.02.12
Initial creation.
Yao
Castles Technology Co., Ltd. Confidential • All Right Reserved. Pg. 4
Contents
1. Introduction ............................................................................................................... 5
2. Hardware Setup ......................................................................................................... 6
2.1. Parts of S1F4B-BT ............................................................................................ 6
2.2. Power on S1F4B-BT & Charge S1F4 ................................................................. 9
3. appendix .................................................................................................................. 10
3.1. FCC ................................................................................................................ 10
3.2. IC .................................................................................................................... 11
3.3. UL / IEC 62368-1 ............................................................................................. 12
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1. Introduction
This document provides a guideline on operating and configuring Castles S1 cradle
The scope of this document includes setting up and basic operation.
Regulatory instruction of usage
● Before using the cradle, please check has it been disassembled, modified, or showed
abnormal situation. If yes, please do not use.
● Please stay away from strong electromagnetic waves.
(Example) Microwave ovens, magnets, shoplifting prevention devices, high-voltage
wires, automatic doors, communication antennas, etc.
● Condensation can occur when moving from a cold place to a warm place. If
condensation occurs, do not use the unit until the connected water droplets evaporate.
● Static electricity may occur in some places (such as where you use a carpet).
● Please do not leave it in the sun for a long time.
● Please operate the unit carefully as it is a precision instrument. Do not apply impact,
drop or heavy objects on top of the unit.
● Do not attach dust, oil, etc. to a part of the power terminal. Also, please do not scratch.
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2. Hardware Setup
2.1. Parts of S1F4B-BT
S1F4Pro &S1F4B-BT
Front/Top
1. Charging Pins
1
2
3
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Left
2. Power Indicator (Green Light)
Right
3. Bluetooth Signal Indicator (Blue Light)
2
3
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Rear
4. Product Label
Rear
5. LAN Port
6. USB Type-C PD (9V, 2A)
7. USB Type-B (Factory Mode)
4
5
6
7
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2.2. Power on S1F4B-BT & Charge S1F4
Step1: Plug the USB-Type C cable into
USB Type-C port on the rear part of
S1F4B-BT.
Step2: The power indicator on the left
front side of S1F4B-BT will light up
immediately after plugging the USB
Type-C cable.
Step3: Put S1F4 on S1F4B-BT, then
the POS cradle will charge S1F4.
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3. appendix
3.1. FCC
Federal Communication Commission Interference Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is
no guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct the interference by one of
the following measures:
⚫ Reorient or relocate the receiving antenna.
⚫ Increase the separation between the equipment and receiver.
⚫ Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
⚫ Consult the dealer or an experienced radio/TV technician for help.
FCC Caution:
⚫ Any changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate this equipment.
⚫ This transmitter must not be co-located or operating in conjunction with any other antenna
or transmitter.
Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with minimum distance 20cm
between the radiator & your body.
Note: The country code selection is for non-US model only and is not available to all US model.
Per FCC regulation, all WiFi product marketed in US must fixed to US operation channels only.
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3.2. IC
Industry Canada statement
This device complies with ISED’s licence-exempt RSSs. Operation is subject to the
following two conditions: (1) This device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
Le présent appareil est conforme aux CNR d’ ISED applicables aux appareils radio
exempts de licence. L’exploitation est autorisée aux deux conditions suivantes : (1) le
dispositif ne doit pas produire de brouillage préjudiciable, et (2) ce dispositif doit
accepter tout brouillage reçu, y compris un brouillage susceptible de provoquer un
fonctionnement indésirable.
Radiation Exposure Statement:
This equipment complies with ISED radiation exposure limits set forth for an
uncontrolled environment. This equipment should be installed and operated with
greater than 20cm between the radiator & your body.
Déclaration d'exposition aux radiations:
Cet équipement est conforme aux limites d'exposition aux rayonnements ISED
établies pour un environnement non contrôlé. Cet équipement doit être installé et
utilisé à plus de 20cm entre le radiateur et votre corps.
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3.3. UL / IEC 62368-1
● Warning:
Power cord shall be connected to a socket-outlet with earthing connection.
● Warning:
Risk of explosion if battery is replaced by an incorrect type. Dispose of expended
battery in accordance with local disposal regulations.
● Warning:
This product is intended to be supplied by a Listed Power Adapter "L.P.S." (Or
"Limited Power Source") and is rated at 9 Vdc, 2 A min., Tma = 40 degrees C.
Warning:
The COM port is not used for connection to the telecommunication network.
● Attention:
le cordon d'alimentation doit être branché sur une prise secteur avec mise à la
terre.
● Attention:
Risque d'explosion si la batterie est remplacée par une de type incorrect É liminer
la pile usagée conformément à la réglementation locale en vigueur.
● Attention:
Le produit est destiné à être alimenté par un adaptateur secteur répertorié « L.P.S.
» (ou "Source d'alimentation limitée") et est évalué à 9 Vdc, 2 A min., Tma = 40
degrés C.
● Attention:
Le port COM ne sert pas à la connexion au réseau de télécommunication.
~End~
