ELECTRICAL CHARACTERISTICS Model LF40B11 LF40B14 LF40B17 LF40B20
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ETHERNET 10BASE-T QUAD TRANSFORMER MODULES
ELECTRICAL CHARACTERISTICS
Model LF40B11 LF40B14 LF40B17 LF40B20 LF40B28 LF40B30 LF40B31 LF40B34 LF40B35 LF40B43 LF40B44 LF40B45 LF40B47 LF40B48 LF40B49 (Min) (uH) (Max) (uH) TX/RX 0.5/0.3 1.0/0.4 1.0/0.4 1.0/0.4 (pf) (Max) (Ohm) Turns Ratio Hi-Pot (60Sec) TX/RX (5%) (Vrms) 1:1/1:1 1:1.414/1:1 2:1/1:1 1:2/1:1 1:1/1:1 1:1/1:1 1:1.414/1:1 1:1.414/1:1 1:1.414/1:1 1:1/1:1 1:1.414/1:1 1:1.414/1:1 2:1/1:1 2:1/1:1 2:1/1:1 1500 1500 1500 1500 1500 1500 1500 1500 1500 1500 1500 1500 1500 1500 1500 0.35
MECHANICAL CONSTRUCTION
24.13
12.18 16.76
LF40B**
DATE CODE 1.27 0.76 UNIT inch 28.00 0.254 1.102 0.010 12.00 0.254 0.472 0.010 5.80 0.254 0.228 0.010 16.00 0.254 0.630 0.010 1.27 0.050 (TYP) 0.46 0.127 0.018 0.005 0.254 0.127 0.010 0.005 0.254 0.010 (TYP) 1.00 0.254 0.039 0.010 24.13 0.950 (TYP)
DELTA ELECTRONICS, INC.
(TAOYUAN PLANT CPBG) 252, YING ROAD, KUEI INDUSTRIAL ZONE, TAOYUAN SHIEN, TAIWAN, R.O.C.
TEL: 886-3-3591968; FAX: 886-3-3591991
ETHERNET 10BASE-T QUAD TRANSFORMER MODULES
SCHEMATICS
LF40B11, LF40B14, LF40B17, LF40B20
LF40B28
ASSIGNMENT
Port
Name Pin# TD+1 TD-1 RD+1 RX-1 Pin# Name TX+1 CMT1 TX-1 RX+1 RX-1
ASSIGNMENT
Port
Name Pin# TD+3 TD-3 RD+3 RD-3 Pin# Name TX+3 CMT3 TX-3 RX+3 RX-3
Port
11.30
Name Pin# Pin# TD+1 3.38 TD-1 RD+1 RX-1 4.37 5.36 1.40 2.39
Name TX+1 CMT1 TX-1 RX+1 RX-1
Port
Name Pin# TD+3 TD-3 RD+3 RD-3
Pin#
Name TX+3 CMT3 TX-3 RX+3 RX-3
13.28 14.27 12.29
Port
Name Pin# TD+2 TD-2 RD+2 RX-2
Pin#
Name TX+2 CMT2 TX-2 RX+2 RX-2
Port
Name Pin# Pin# TD+4 TD-4 RD+4 RD-4
Name TX+4 CMT4 TX-4 RX+4 RX-4
Port
Name Pin# Pin# TD+2 TD-2 RD+2 RX-2
Name TX+2 CMT2 TX-2 RX+2 RX-2
Port
Name Pin# Pin# TD+4 TD-4 RD+4 RD-4
Name TX+4 CMT4 TX-4 RX+4 RX-4
DELTA ELECTRONICS, INC.
(TAOYUAN PLANT CPBG) 252, YING ROAD, KUEI INDUSTRIAL ZONE, TAOYUAN SHIEN, TAIWAN, R.O.C.
TEL: 886-3-3591968; FAX: 886-3-3591991
ETHERNET 10BASE-T QUAD TRANSFORMER MODULES
SCHEMATICS
LF40B30, LF40B31
LF40B43, LF40B44
ASSIGNMENT
Port
Name Pin# Pin# TD+1 TD-1 RD+1 RX-1 TX-1 RX+1 RX-1 Name TX+1
ASSIGNMENT
Port
Name Pin# Pin# TD+3 TD-3 RD+3 RD-3 11.30 TX-3 RX+3 RX-3 Name TX+3
Port
Name Pin# Pin# TD+1 TD-1 RD+1 RD-1
Name TX+1
Port
Name Pin# Pin# TD+3 11.30
Name TX+3
TX-1 RX+1 RX-1
TD-3 RD+3 RD-3
TX-3 RX+3 RX-3
Port
Name Pin# Pin# TD+2 TD-2 RD+2 RX-2
Name TX+2
Port
Name Pin# Pin# TD+4
Name TX+4
Port
Name Pin# Pin# TD+2 6.35 7.34 9.32 10.31
Name TX+2
Port
Name Pin# Pin# TD+4 16.25 19.22 20.21
Name TX+4
TX-2 RX+2 RX-2
TD-4 RD+4 RD-4
TX-4 RX+4 RX-4
TD-2 RD+2 RD-2
TX-2 RX+2 RX-2
TD-4 RD+4 RD-4
TX-4 RX+4 RX-4
DELTA ELECTRONICS, INC.
(TAOYUAN PLANT CPBG) 252, YING ROAD, KUEI INDUSTRIAL ZONE, TAOYUAN SHIEN, TAIWAN, R.O.C.
TEL: 886-3-3591968; FAX: 886-3-3591991
ETHERNET 10BASE-T QUAD TRANSFORMER MODULES
SCHEMATICS
LF40B34
LF40B35
LF40B45
ASSIGNMENT
Port
Name Pin# Pin# TD+1 3.38 TD-1 RD+1 RX-1 5.36 4.37 1.40 2.39 Name TX+1 CMT1 TX-1 RX+1 RX-1
Port
Name Pin# Pin# TD+3 TD-3 RD+3 RD-3
Name TX+3 CMT3 TX-3 RX+3 RX-3
Port
Name Pin# Pin# TD+2 TD-2 RD+2 RX-2
Name TX+2 CMT2 TX-2 RX+2 RX-2
Port
Name Pin# Pin# TD+4 17.24 TD-4 RD+4 RD-4 16.25 18.23 19.22 20.21
Name TX+4 CMT4 TX-4 RX+4 RX-4
DELTA ELECTRONICS, INC.
(TAOYUAN PLANT CPBG) 252, YING ROAD, KUEI INDUSTRIAL ZONE, TAOYUAN SHIEN, TAIWAN, R.O.C.
TEL: 886-3-3591968; FAX: 886-3-3591991
A-10
ETHERNET 10BASE-T QUAD TRANSFORMER MODULES
SCHEMATICS
LF40B47
LF40B48
LF40B49
ASSIGNMENT
Port
Name Pin# Pin# TD+1 TD-1 RD+1 RD-1 Name TX+1 CMT1 TX-1 RX+1 RX-1
Port
Name Pin# Pin# TD+3 TD-3 RD+3 RD-3
Name TX+3 CMT3 TX-3 RX+3 RX-3
Port
Name Pin# Pin# TD+2 TD-2 RD+2 RD-2
Name TX+2 CMT2 TX-2 RX+2 RX-2
Port
Name Pin# Pin# TD+4 TD-4 RD+4 RD-4
Name TX+4 CMT4 TX-4 RX+4 RX-4
DELTA ELECTRONICS, INC.
(TAOYUAN PLANT CPBG) 252, YING ROAD, KUEI INDUSTRIAL ZONE, TAOYUAN SHIEN, TAIWAN, R.O.C.
TEL: 886-3-3591968; FAX: 886-3-3591991
A-11
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