Connecting The Power Cables - HP A6602 Installation Manual

Generally, you need to connect a signal lightning arrester (namely, a transient over-voltage
protection) before connecting a signal cable to the router. This can protect electronic devices
against surge over-voltage resulting from lightning strokes and other interferences, and
minimize impact on the router.
Because the signal lightning arrester is serially connected to a signal cable, the signal lightning
arrester must satisfy the requirements of network performance indexes such as data
transmission bandwidth, as well as the lightning protection performance requirement.
Therefore, before installing a signal lightning arrester, you need to consider such performance
indexes of the lightning arrester as lightning protection, bandwidth, transmission loss, and port
type.
The A6602 supports three types of signal lightning arresters:
Voltage-limiting protection – signal lightning arrester – maximum discharge current

2.5KA/protection voltage 25V--SMB-75J/ SMB-75J-1W-10Mbps
Voltage-limiting protection – signal lightning arrester – maximum discharge current

2.5KA/protection voltage 25V-BNC-75K/ BNC-75K-10Mbps
Voltage-limiting protection – signal lightning arrester (U port) - maximum discharge

current 3KA/common-mode 400V/differential mode 170V-RJ11
The signal lightning arrester should be grounded as near as possible. The grounding

resistance must be less than 4 ohms. The grounding resistance must be less than 1 ohm if
there are special grounding requirements.
Connect the grounding cable to the special-purpose grounding cable of the signal lightning

arrester and connect it to the earthing network, instead of connecting it to the lightning rod
or lightning belt.

Connecting the Power Cables

Power Supply Port and PGND Terminal
The A6602 only supports AC power input. The AC power socket and power switch are located
on the left of the front panel, as shown in
Figure 3-11 AC power socket
(1) Bail latch holder
(3) Power switch (ON/OFF)
Figure 3-11.
(2) AC power socket (100 VAC to 240 VAC; 50/60Hz; 2.5A)