GAI-Tronics PHP400 Руководство по установке и эксплуатации - Страница 15
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Technical Specifications
12.
Operational Requirements
Systems.
Not suitable for
connection to:
Telephone line
parameters
(without
supplementary
power supply)
With
supplementary
power supply
Note: these telephones have been designed for pan-European single terminal connection to the PSTN. However, due to
differences between the individual PSTNs & PABXs provided in different countries, this does not, of itself, give an
unconditional assurance of successful operation on every PSTN or PABX termination point.
Product features
Power supply
Hookswitch
Ringer loudness
•
Analogue Public Switched Telephone Network (PSTN)
•
Private Automatic Branch Exchange (PABX)
•
Payphone extensions
•
Public Emergency Telephone System (PETS)
•
Ring Voltage: 40V to 100V rms, 20Hz to 50Hz
•
Line voltage 20 to 70 Vdc
•
Loop current 25mA
•
Max loop resistance 2800Ω
•
Line impedance 270R + 750R||150nF as defined in ETSI standard
ES 203 021 (previously TBR21)
•
Ring Voltages down to 30V
•
Loop current down to 15mA
•
Input requirement 85-264V, 47-63Hz, 0.5A typ. Inrush current
(cold start at 230V) 45A typ.
•
Integral isolated mains to 12Vdc power supply provided as
standard.
•
Internal fuse 1A (T) HRC. 20 x 5mm.
•
Can operate from line power only (without induction loop and
relays).
Electronic with no external moving parts
80dBA @ 1m
PHP400 Analogue Help Point.
15