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- Page 9 of 51 - 

 

 

 

Report No.  114383 

 

TRF No.:IECEN60950_1B 

 

IEC 60950-1 / EN 60950-1 

Clause 

Requirement – Test  

Result – Remark  

Verdict 

1.6 Power 

interface 

 

1.6.1 

AC power distribution systems 

DC supplied. 

N/A 

1.6.2 Input 

current 

(see appended table 1.6.2)  

P 

1.6.3 

Voltage limit of hand-held equipment 

The equipment is not hand-
held. 

N/A 

1.6.4 

Neutral conductor  

Class III equipment. 

N/A 

 

1.7 

Markings and instructions 

 

1.7.1 

Power rating  

The required marking is located 
on the outside surface of the 
equipment. 

P 

 

Rated voltage(s) or voltage range(s) (V) ............:

18Vdc 

 

 

Symbol for nature of supply, for d.c. only ............:

IEC 60417, symbol No. 5031, is 
used. 

P 

 

Rated frequency or rated frequency range (Hz) .:

DC supplied. 

 

 

Rated current (mA or A)  .....................................:

1200mA 

 

 

Manufacturer’s name or trademark or 
identification mark ...............................................:

JBL 

 

 

Type/model or type reference .............................:

Duet II 

 

 Symbol 

of for Class II equipment only ................:

The equipment is Class III. 

N/A 

 Other 

symbols ....................................................:

The additional marking does 
not give rise to 
misunderstandings. 

N/A 

 Certification 

marks ..............................................:

Refer to copy of markings. 

 

1.7.2 Safety 

instructions 

Class III equipment, the unit 
can only be connected 
to adapters list in the marking 
label, refer to label.  

P 

1.7.3 

Short duty cycles 

The equipment is intended for 
continuous operation. 

N/A 

1.7.4 

Supply voltage adjustment  .................................:

No voltage selector. 

N/A 

1.7.5 

Power outlets on the equipment .........................:

No standard power outlet. 

N/A 

1.7.6 Fuse 

identification ...............................................:

No fuse. N/A 

1.7.7 

Wiring terminals 

Refer below: 

 

1.7.7.1 

Protective earthing and bonding terminals .........:

Class III equipment. 

N/A 

1.7.7.2 

Terminal for a.c. mains supply conductors  

Class III equipment. 

N/A 

1.7.7.3 

Terminals for d.c. mains supply conductors 

Class III equipment. 

N/A 

1.7.8 

Controls and indicators 

Refer below: 

 

 

 

- Page 10 of 51 - 

 

 

 

Report No.  114383 

 

TRF No.:IECEN60950_1B 

 

IEC 60950-1 / EN 60950-1 

Clause 

Requirement – Test  

Result – Remark  

Verdict 

1.7.8.1 Identification, 

location 

and marking  ....................:

No control. 

N/A 

1.7.8.2 Colours 

...............................................................:

No indicators with colours 
where safety is involved. 

N/A 

1.7.8.3 Symbols 

 .............................................................:

There is no switch in the 

equipment, function control is 
marked with “+” and “-” for 
volume control. 

N/A 

1.7.8.4 Markings 

using figures  ......................................:

 

N/A 

1.7.9 

Isolation of multiple power sources ....................:

Class III equipment. 

N/A 

1.7.10 

IT power distribution systems  

Class III equipment. 

N/A 

1.7.11 

Thermostats and other regulating devices  

No thermostats or other 
regulating devices.  

N/A 

1.7.12 Language 

............................................................:

Instructions and markings shall 

be in a language acceptable for 
the country where the 
equipment is to be used. 

1.7.13 

Durability 

The marking withstands 
required tests. 

P 

1.7.14 

Removable parts 

No removable parts. 

N/A 

1.7.15 

Replaceable batteries 

No battery in the equipment. 

N/A 

 Language.............................................................:

 

1.7.16 

Operator access with a tool.................................:

All areas containing hazard(s) 
are inaccessible to the 
operator. 

N/A 

1.7.17 

Equipment for restricted access locations...........:

Equipment not intended for 
installation in RAL. 

N/A 

 

2 

PROTECTION FROM HAZARDS 

 

2.1 

Protection from electric shock and energy hazards 

 

2.1.1 

Protection in operator access areas  

Refer below: 

2.1.1.1 

Access to energized parts  

Class III equipment. 

N/A 

 Test 

by 

inspection ...............................................:

 

N/A 

 Test 

with 

test finger  ............................................:

 

N/A 

 Test 

with 

test pin .................................................:

 

N/A 

 Test 

with 

test probe ............................................:

 

N/A 

2.1.1.2 Battery 

compartments 

........................................:

No TNV circuits in the 
equipment. 

N/A 

2.1.1.3 

Access to ELV wiring 

No internal wiring at ELV 
accessible to the operator. 

N/A 

 

 

- Page 11 of 51 - 

 

 

 

Report No.  114383 

 

TRF No.:IECEN60950_1B 

 

IEC 60950-1 / EN 60950-1 

Clause 

Requirement – Test  

Result – Remark  

Verdict 

 

Working voltage (V); minimum distance (mm) 
through insulation 

 

2.1.1.4 

Access to hazardous voltage circuit wiring 

Class III equipment. 

N/A 

2.1.1.5 Energy 

hazards ..................................................:

Class III equipment, supplies 
from a LPS, adaptor evaluated 
in this test report (refer to 
summary of testing) 

P 

2.1.1.6 

Manual controls 

Class III equipment 

N/A 

2.1.1.7 

Discharge of capacitors in equipment 

Class III equipment 

N/A 

 Time-constant 

(s); 

measured voltage (V)............:

 

2.1.2 

Protection in service access areas 

Class III equipment. 

N/A 

2.1.3 

Protection in restricted access locations 

Equipment not intended for 
installation in RAL. 

N/A 

 

2.2 SELV 

circuits 

 

2.2.1 

General requirements 

SELV limits are not exceeded 
under normal condition and 
after a single fault. Equipment 
is powered by a SELV source. 

P 

2.2.2 

Voltages under normal conditions (V) .................:

Equipment is powered by a 
SELV source. 

P 

2.2.3 

Voltages under fault conditions (V) .....................:

Equipment is powered by a 
SELV source. 

P 

2.2.3.1 

Separation by double insulation or reinforced 
insulation (method 1) 

Class III equipment. 

N/A 

2.2.3.2 

Separation by earthed screen (method 2) 

 

N/A 

2.2.3.3 

Protection by earthing of the SELV circuit 
(method 3) 

 N/A 

2.2.4 

Connection of SELV circuits to other circuits .......: SELV circuits are not 

connected to other circuits than 
protective earth. 

P 

 

2.3 TNV 

circuits 

 

2.3.1 Limits 

Refer 

below: 

 

 

Type of TNV circuits ............................................:

No TNV circuits in the 
equipment. 

2.3.2 

Separation from other circuits and from 
accessible parts 

No TNV circuits in the 
equipment. 

N/A 

 Insulation 

employed.............................................:

 

 

 

- Page 12 of 51 - 

 

 

 

Report No.  114383 

 

TRF No.:IECEN60950_1B 

 

IEC 60950-1 / EN 60950-1 

Clause 

Requirement – Test  

Result – Remark  

Verdict 

2.3.3 

Separation from hazardous voltages 

No TNV circuits in the 
equipment. 

N/A 

 Insulation 

employed.............................................:

 

2.3.4 

Connection of TNV circuits to other circuits 

No TNV circuits in the 
equipment. 

N/A 

 Insulation 

employed.............................................:

 

2.3.5 

Test for operating voltages generated externally 

No TNV circuits in the 
equipment. 

N/A 

 

 

 

 

2.4 

Limited current circuits 

 

2.4.1 

General requirements 

No limited current circuits. 

N/A 

2.4.2 Limit 

values 

 

 

 Frequency 

(Hz)....................................................:

 

 Measured 

current (mA) .......................................:

 

 Measured 

voltage (V) ..........................................:

 

 

Measured capacitance (

μF).................................:

 

2.4.3 

Connection of limited current circuits to other 
circuits 

 

 

 

2.5 

Limited power sources 

 

 

Inherently limited output 

Class III equipment powered by 
Limited Power Source adaptor 
certified by IEC 60950-1. 
Therefore all outputs are 
considered to be limited power. 
(refer to summary of testing) 

N/A 

 

Impedance limited output 

 

N/A 

 

Overcurrent protective device limited output 

 

N/A 

 

Regulating network limited output under normal 
operating and single fault condition 

 

N/A 

 

Regulating network limited output under normal 
operating conditions and overcurrent protective 
device limited output under single fault condition 

 

N/A 

 

Output voltage (V), output current (A), apparent 
power (VA)......................................................... : 

 

 

Current rating of overcurrent protective device (A)

 

 

2.6 

Provisions for earthing and bonding