Pub. 42004-735L2D
M
ODEL
LE300
S
ERIES
W
ALL
-M
OUNT
P
AGE
/P
ARTY
®
L
INE
E
XTENDERS
Page 10 of 53
p:\standard ioms - current release\42004 instr. manuals\42004-735l2d.doc
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Page Line Ground Fault Re-generation
When a ground fault is detected at a remote LE300 line extender, the ground fault can be duplicated on the
local Page/Party
®
system cable. DIP switch SW5 position 3 enables regeneration of the ground fault.
Refer to Figure 7 for the location of switch SW5 on the main PCBA and the table below for setting this
option.
Table 8. Page Line Ground Fault Regeneration Setting on Main PCBA
SW5-3
Page Line Ground Fault Regeneration
Open*
Disabled – Page line ground faults detected on the remote system cable are NOT
regenerated on the local system cable.
Closed
Enabled – Page line ground faults detected on the remote system cable are regenerated on
the local system cable.
N
OTES
:
1.
The ground fault regeneration feature is used in SmartSeries systems to allow a ground fault on the
remote cable segment to be detected by the system control cabinet. Disable this feature if the line
extender is not installed in this type system.
2.
Changes to this parameter take effect without cycling power.
3.
*Indicates default position.
Page Line Ground Fault Output Contact
The Model LE300 provides a relay contact that activates whenever a ground fault is detected on the local
page line, remote page line or both the page lines. The ground fault detection feature (described above)
must be enabled. The contact output can be used to activate an external device or system which
annunciates the fault condition. The DIP switch SW5 positions four and five configure which page line
ground faults activate this contact. Refer to Figure 7 for the location of switch SW5 on the main PCBA
and the table below for setting this option.
Table 9. Page Line Ground Fault Contact Setting on Main PCBA
SW5-4
SW5-5
Page Line Ground Fault Contact
Closed
Closed
Disabled
Closed
Open
Remote page line ground fault activates the contact.
Open
Closed
Local page line ground fault activates the contact.
Open*
Open*
Both Local and Remote page line ground faults activate the contact.
N
OTES
:
1. Changes to this parameter take effect without cycling power.
2. *Indicates default position.