ltc2871fe Linear Technology Corporation, ltc2871fe Datasheet - Page 29

• Manufacturer Part Number: ltc2871fe
• Description: Ltc2870/ltc2871 - Rs232/rs485 Multiprotocol Transceivers With Integrated Termination
• Manufacturer: Linear Technology Corporation

TYPICAL APPLICATIONS
V
CC
= 3V to 5.5V, V
RS232
V
L
L
= 1.7V to V
DRIVER
RXIN
OUT
TE485
LTC2870/LTC2871
V
L
SLAVE
CC
RIN1
ROUT1
DIN1
DX232
DX485
CH2
TE485
DI
ROUT1
RO
Figure 42. RS232 Extension Cord Using RS232 to RS485 Conversion
. Logic input pins not shown are tied to a valid logic state.
120Ω
120Ω
LTC2871
GND
Figure 43. RS485 Full-Duplex Network
120Ω
120Ω
RX232
RX485
LTC2852
SLAVE
H/F
LB
A
B
Y
Z
UP TO 4000 FT
CAT5e CABLE
RS485
LTC2852
SLAVE
A
B
Y
Z
RX232
LB
RX485
H/F
120Ω
120Ω
LTC2871
GND
LTC2870/LTC2871
DOUT1
ROUT1
DX232
DX485
120Ω
TE485
RIN1
DIN1
28701 F42
CH2
MASTER
LTC2855
RO
DI
V
L
DRIVER
RXOUT
28701 F43
TE
IN
3.3V
RS232
29
28701f