GAI-Tronics LE300-IP Page/Party Line Extender - Manual (Page 53)

Pub. 42004-488C
M ODEL LE300-IP P AGE /P ARTY
®
L INE E XTENDER P AGE 50 of 68
e:\standard ioms - current release\42004 instr. manuals\42004-488c.doc
09/14
Table 33. Main PCBA
Designator Type Function
J1 RJ-45 receptacle LVDS data “out”
J2 RJ-45 receptacle LVDS data “in”
J3 DB-25
connector
Connects to J1 on Input/Output Termination Connection Module via
25-pin ribbon cable.
J4 DB-25
connector
Connects to J1 on Page/Party ® Termination Connection Module via
25-pin ribbon cable.
P1 N/A Not installed
P2 Post header No connection - used during production testing of PCBA
P3 N/A Not installed
P4 Post header No connection - used during production testing of PCBA
P5 Jumper clip Page line ground fault detector (enabled/disabled)
P6, P7 Jumper clip Party line #5 off-hook detector (enabled/disabled)
P8, P9 Jumper clip Party line #4 off-hook detector (enabled/disabled)
P10, P11 Jumper clip Party line #3 off-hook detector (enabled/disabled)
P12, P13 Jumper clip Party line #2 off-hook detector (enabled/disabled)
P14, P15 Jumper clip Party line #1 off-hook detector (enabled/disabled)
P16 Terminal block Page line monitor output - Terminals 1 and 3
No connection - Terminal 2
P17, P18 Terminal block Power 48 V dc (+) - Terminal 1
Power 48 V dc (−) - Terminal 2
P19 Terminal block T1/E1 Data TX (ring) - Terminal 1
T1/E1 Data TX (tip) - Terminal 2
T1/E1 Data RX (ring) - Terminal 3
T1/E1 Data RX (tip) - Terminal 4
P20 Jumper clip T1/E1 receive transformer center tap floating/grounded.
P21 Jumper clip T1/E1 transmit transformer center tap floating/grounded.
PB1 Push-button
switch
Used to retrain the echo cancellation circuit.
SW1 Rotary HEX
switch
Used for diagnostic purposes. Set to 0 during normal operation.