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Relay port
Connect this relay output port to a notification device to create visual or audio alerts for
triggering conditions such as power output shutdown (once the port conditions, events,
and notifications are configured).
The relay contacts may
be used to control any
equipment as long as the
contact specifications of a
total of 24 V at 1 A are not
exceeded for the port. The
relay is normally open by
default.
When activated, the open
contacts close. They can
be set up to operate in one
of two ways:
Latching (brief or
•
indefinite period
contact) —press to
close, press to open, or
•
Pulsed (timed cycle)
— press to close,
timeout to open, with
automatic repeat.
In pulse mode the default timeout period (hold time) is ½ second (500 ms). Use
Global Configurator to change the length of the timeout period.
NOTE: The pulse function is absolute: it always sets the relay state to closed, times
out (briefly), then opens the contact. It overrides the previously selected setting (on
state, off state, or toggle).
Bidirectional Control and Communication Connection
LAN (Ethernet) connector and LEDs
To connect the IPL EXP to an Ethernet network (for configuration and control of the EXP
and the devices connected to it), plug a cable into the RJ‑45 socket and connect the other
end of the cable to a network switch, hub, router, or PC connected to a local network or the
Internet. DHCP is off by default.
Network Port Addressing:
If you use static IP addresses, configure the settings and IP addresses via Toolbelt. See the
help file for Global Configurator or Toolbelt for basic information on configuration. See the
diagram on the next page and see the following table for default addresses.
Static IP addresses (default, what the unit uses when DHCP is off)
DHCP on (alternative setting)
Relay is
normally open.
Rear
Panel
IPL
L
L
E X
E
E
X
X
X
P
P
P
P
P
DU4
4
H
1
2
G
G
G
G
M
M A
A C
C :
: 0
0
0 0
0
-0
0 5
5 -A6
6
-XX
X -XX-
-
XX
S/
/
/ N:
#
#
#
# ##
#
# #
# ##
#
E#
#
###
# ##
L
L A
A N
A
A
3
4
G
G
G
G
G
NO C
M A NU AL
CO N TRO
L
R E L A Y
To
Notification
Equipment
Figure 9.
Relay Output Port
Network Port Addressing
IP Address
Subnet Mask DNS Address
192.168.254.250
255.255.255.0 127.0.0.1
DHCP on (addresses are automatically assigned)
IPL EXP PDU4H • Hardware Features and Installation
Relay
• Connect device for relay alert noti cations.
Con gure via Global Con gurator,
Global Scripter, or SIS).
• Do not exceed a total of 24 V, 1 A for the port.
Normally
Closed
Open
18
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