GAI-Tronics LE300-IP Page/Party Line Extender - Manual (Page 66)

Pub. 42004-488C
M ODEL LE300-IP P AGE /P ARTY
®
L INE E XTENDER P AGE 63 of 68
e:\standard ioms - current release\42004 instr. manuals\42004-488c.doc
09/14
Page Line Ground Fault Detection
DC resistance from either L1 or L2 to ground for fault .................................................................. 5,000 
DC resistance from either L1 or L2 to ground for no fault ............................................................. 8,000 
Minimum ground fault duration for detection ............................................................. 10 seconds (nominal)
Minimum no ground fault duration for detection ........................................................ 10 seconds (nominal)
No ground fault to ground fault propagation delay ..............................
20 seconds includes detection time
Ground fault to no ground fault propagation delay .............................. 20 seconds includes detection time
N OTE : Rapidly changing ground fault conditions may or may not be detected.
Page Line Ground Fault Generation
Resistance when generating ground fault .......................................................................... 3.3 k  (nominal)
Resistance when not generating ground fault .................................................................................... 1 M
N OTE : The resistance is from the center tap of the page line coupling transformer to ground.
Party Line Off-hook detection
DC resistance between L1 and L2 for off-hook ................................................................................. 300 
DC resistance between L1 and L2 for on-hook ............................................................................ 30,000 
Minimum off-hook duration for detection ........................................................... 50 milliseconds (nominal)
Minimum on-hook duration for detection ...................................................................... 5 seconds (nominal)
On-hook to off-hook propagation delay ................................................
0.5 second includes detection time
Off-hook to on-hook propagation delay ............................................... 10 seconds includes detection time
N OTE : Rapidly changing off-hook or on-hook conditions may or may not be detected.
Contact Outputs
Contact output type .......................................................................................... DPDT miniature signal relay
Switching power ....................................................................................................
30 W dc (resistive load)
62.5 VA ac (resistive load)
Switching voltage.......................................................................................................................... 110 V dc
125 V ac
Switching current ................................................................................................................................ 1.0 A
Minimum switching capacity ............................................................................. 10 A, 10 mV dc (nominal)
N OTE : When neither the T1/E1 Link nor the LVDS link is detected, the contact outputs are de-energized.