ASM3483ꢁ/ASM3486ꢁ/ASM3488ꢁ/ASM3490ꢁ/ASM349±ꢁ
MASTER
SLAVE
ADM3491E
ADM3491E
DE
A
B
Y
Z
R
R
D
T
RO
RE
DE
DI
DI
B
Z
Y
D
R
R
RO
RE
T
A
A
B
R
A
B
R
Y
Y
Z
Z
SLAVE
SLAVE
D
D
ADM3491E
ADM3491E
RO RE DE DI
RO RE DE DI
NOTES
1. MAXIMUM NUMBER OF NODES: 32.
2. R IS EQUAL TO THE CHARACTERISTIC IMPEDANCE OF THE CABLE USED.
T
Figure 33. ADM3491E Full-Duplex RS-485 Network
ADM3488E/
ADM3490E/
ADM3491E
A
RO
RE
R
R
DATA IN
R
T
B
DE
DI
Z
Y
D
DATA OUT
T
NOTES
1. R IS EQUAL TO THE CHARACTERISTIC
T
IMPEDANCE OF THE CABLE USED.
2. RE AND DE PINS ON ADM3491E ONLY.
Figure 34. Line Repeater for ADM3488E/ADM3490E/ADM3491E
Rev. A | Page 17 of 20