AM26LS30
Figure 17. EIA–422–A Example
R
TTL
R
TTL
En
TTL
D
En
TTL
D
RT
En
TTL
D
TTL
R
En
TTL
D
En
TTL
D
TTL
R
RT
En
TTL
D
R
TTL
Twisted
Pair
NOTES: 1. Terminating resistors RT should be located at the physical ends of the cable.
2. Stubs should be as short as possible.
3. Receivers = AM26LS32, MC3486, SN75173 or SN75175.
4. Circuit grounds must be connected together through a dedicated wire.
CC
TTL
D
CC
TTL
D
CC
TTL
D
CC
TTL
D
AM26LS30
Figure 18. EIA–423–A Example
+
RT
–R
TTL
+
RT
–R
TTL
+
RT
–R
TTL
RT
+R
–
TTL
AM26LS32, MC3486, SN75173, or SN75175
MOTOROLA ANALOG IC DEVICE DATA
11