Aeroflex Circuit Technology

SCDCT1995 REV A 11/21/01 Plainview NY (516) 694-6700

13

1553B

BUS "B"

1553B

BUS "A"

ACT4453

Driver/

Receiver 1

ACT4453

Driver/

Receiver 0

TX DATA OUT

RX DATA IN

TX DATA OUT

RX DATA IN

XFR0

XFR1

+

+

TX DATA OUT

RX DATA IN

TX DATA OUT

RX DATA IN

RX DATA OUT

TX DATA IN

TX DATA IN

RX DATA OUT

RX DATA OUT

TX DATA IN

TX DATA IN

RX DATA OUT

TX INHIBIT "1"

CT1995

RX DATA 0

RX DATA 0

TX DATA

TX DATA

TX INHIBIT "0"

TX INHIBIT "1"

TX INHIBIT "0"

Figure 5 – Example of an Interface between the CT1995 and Driver/Receiver

1MHz

NRZ

Manchester

Figure 4 – Data Encoding

Data

Bi-Phase

Clock

(+) -

(0) -

(+) -

(0) -

(+) -

(0) -

(-) -

One Bit Time

RX DATA 1

RX DATA 1