Belden Hirschmann GREYHOUND GMM20, Руководство пользователя

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76
Installation GREYHOUND Switch
Release 07 10/2020
7.1.2 Power supply modules
Dimensions See “Dimension drawings” on page 78.
Weight GPS1-C 21.16 oz (600 g)
GPS1-K 25.04 oz (710 g)
GPS3-P 26.46 oz (750 g)
Mounting of the
power supply
modules Tightening torque 4.4 lb-in (0.5 Nm)
Mounting of the
cover panel Tightening torque 4.4 lb-in (0.5 Nm)
Climatic
conditions during
operation Air pressure (altitude) min. 600 hPa
(+13123 ft; +4000 m)
Power supply
module
characteristic
value C Rated voltage range 24 V DC ... 48 V DC
Voltage range including maximum
tolerances min. 16.8 V ... max. 60 V
Power loss buffer >10 ms at 20.4 V DC
Overload current protection on the device Non-replaceable fuse
Peak inrush current
< 7 A (1 ms)
Current integral I²t 0.4 A
2
s
Power supply
module
characteristic
value K Rated voltage range 110 V AC ... 240 V AC,
50 Hz ... 60 Hz
60 V DC ... 250 V DC
Voltage range including maximum
tolerances 88 V AC ... 276 V AC,
47 Hz ... 63 Hz
48 V DC ... 288 V DC
Power loss buffer > 17 ms at 110 V AC
> 20 ms at 230 V AC
Overload current protection on the device Non-replaceable fuse
Peak inrush current
< 3 A (1 ms)
Current integral I²t 0.3 A
2
s
Crest factor < 1.8
Power supply
module
characteristic
value P The supply voltage inputs are designed for operation with safety extra-low
voltage. Connect only SELV circuits with voltage restrictions in line with IEC/
EN 60950-1 to the supply voltage connections.
Make sure that the connected supply voltage complies the requirements of
IEEE 802.3af or IEEE 802.3at:
 For the use of type-1-powered devices (PoE):
Rated voltage: 48 V DC
Max. voltage range: 45 V DC ... 57 V DC
 For the use of Type 2 Powered Devices (PoE+):
Rated voltage: 54 V DC
Max. voltage range: 51 V DC ... 57 V DC

The power supply is potential-free. For power supply modules capable of
PoE, exclusively use a potential-free SELV power supply.
Max. PoE power In total: 185 W
Power loss buffer > 10 ms at 40.8 V DC
a
a. Only applies to the basic device, not to the connected powered devices.
Overload current protection on the device Non-replaceable fuse
Peak inrush current
< 2.5 A (1 ms)
Current integral I²t 0.3 A
2
s