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T
AND
Power budget
The GS970M Series PoE switches have the following power budgets:
GS970M/10PS: 124 watts
GS970M/18PS: 247 watts
GS970M/28PS: 370 watts
This is the maximum amount of power the switches can provide at one
time to the powered devices.
The power requirements of the PoE devices determine the maximum
number of devices the switch can support at one time. So long as the total
power requirements of the powered devices is less than the power budget
of the switch, the switch can supply power to all the devices. But if the total
power requirements exceed the power budget, the switch denies power to
one or more ports using a mechanism referred to as port prioritization.
4. T
ABLE
WISTED PAIR CABLE REQUIREMENTS FOR THE
100BASE-TX
PORTS AT
Cable type
Cat 3: Standard TIA/EIA 568-B-
compliant Category 3 shielded
or unshielded cabling with 100
ohm impedance and a
frequency of 16 MHz
Cat 5: Standard TIA/EIA 568-A-
compliant Category 5 shielded
or unshielded cabling with 100
ohm impedance and a
frequency of 100 MHz
Cat 5e: Standard TIA/EIA 568-
B-compliant Enhanced
Category 5 (Cat 5e) shielded or
unshielded cabling with 100
ohm impedance and a
frequency of 100 MHz
Cat 6 or 6a: Standard TIA/EIA
568-B-compliant Category 6 or
6a shielded cabling
GS9790M Series Switch Installation Guide
1000M
BPS
1000Mbps
Non-PoE
No
Yes
Yes
Yes
10/1000BASE-T
PoE
PoE+
No
No
Yes
No
Yes
Yes
Yes
Yes
29
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