a) near to where it enters or leaves the building, or
b) as it enters the network hub, or
c) close to the equipment being protected.
This should be close
to the system's earth star point (to enable a good connection to earth).
Electrical Specification
ESP Net-100/PoE
Maximum working voltage¹
4V/58V²
Current rating (signal/power)
300MA/500mA
In-line resistance (±10%)
1 ohm / 4.4 ohm³
Data rate (TIA Cat 5)
100mbps
Bandwidth
Attenuation
Voltage standing wave ratio
(VSWR)
Near end cross talk
(NEXT)
Exceeds requirements of:
10/100 base TX
TIA Cat 5 Channel
TIA Cat 5 basic link
IEEE 802.13 14-UTP
IEEE 802.3af
1. Maximum working
voltage (DC or AC peak) measured at 1mA leakage.
2. Maximum working voltage is 4V for pairs; 1/2 and 3/6, and 58V for 4/5
and 7/8.
3. In-line resistance of 1 ohm for lines 1,2,3 and 6 and 4.4 ohm for lines
4,5,7 and 8.
Transient Specification
ESP Net-100/PoE
Let through voltage (all conductors)¹
5kV, 10/700µs test to:
BS6651:1999 Appendix C, Cat C-High
ITU (formerly CCITT) IX K17
-Line to line
-Earth to earth³
Maximum surge current³
25V/80V²
600V²
10kA
1. The maximum transient
voltage let-through the protector throughout the test (+10%), line to
line and earth. Response time <10ns.
2. Let-through voltage is 25V for pairs 1/2 and 3/6 and 80V for 4/5 and
7/8.
3. See boxed 'System technical note'
4. Tested with 8/20µs waveshape to ITU (formerly CCITT), BS6651:1999
Appendix C. The connectors may limit the capability of the protector
Connect in series with the
network cable, either:
