AT&T System 85 manual 7400B and 7400B Plus Data Module …………………………………………………………

7400A Data Module Price Element Codes (PEC) ………………………………………………… 5-8

Additional Documents ………………………………………………………………………………… 5-8

7400B and 7400B Plus Data Module ………………………………………………………… 5-11

Applications …………………………………………………………………………………………… 5-11

Physical Description …………………………………………………………………………………… 5-12

Features ………………………………………………………………………………………………… 5-13

Power …………………………………………………………………………………………………… 5-14

Setting Options ………………………………………………………………………………………… 5-14

Notes for Use with PC Packages …………………………………………………………………… 5-15

FCC Registration ……………………………………………………………………………………… 5-16

7400B Data Module PEC Codes …………………………………………………………………… 5-16

Additional Documents ………………………………………………………………………………… 5-16

8400B Plus Data Module…………………………………………………………………………… 5-19

Applications …………………………………………………………………………………………… 5-19

Physical Description …………………………………………………………………………………… 5-21

Features ………………………………………………………………………………………………… 5-23

Power …………………………………………………………………………………………………… 5-24

Setting Options ………………………………………………………………………………………… 5-24

Notes for Use with PC Packages …………………………………………………………………… 5-25

FCC Registration ……………………………………………………………………………………… 5-25

8400B Plus Data Module PEC Codes ……………………………………………………………… 5-26

Additional Documents ………………………………………………………………………………… 5-26

7500B Data Module ………………………………………………………………………………… 5-29

Applications …………………………………………………………………………………………… 5-29

Physical Description …………………………………………………………………………………… 5-29

Features ………………………………………………………………………………………………… 5-30

Distance Limitations …………………………………………………………………………………… 5-32

Power Requirements ………………………………………………………………………………… 5-32

Terminating Resistor ………………………………………………………………………………… 5-32

FCC Registration ……………………………………………………………………………………… 5-32

xxi