Cabletron Systems MR-9000TPT User Manual - page 11

RJ-45 Port Pin Configuration

Figure 2-1.  RJ-45 Pin out

AUI Interface (Port 9)

Frequency range:

4 to 20 MHz normal; 5 to 15 MHz

worst case.

RX and CP pair input

impedance differential:

78 ohms normal; 76 to 80 ohms worst

case

RX and CP pair input

impedance common-mode: Greater than 20.0 ohms

Common-mode voltage

range at RX or CP Pair:

0 to 30 volts normal; 0 to 5 volts worst

case

Input sensitivity at

RX or CP pair:

+/-200 mV normal; +/-160

to +/-300 mV worst case

Waveform symmetry

TX Pair:

+/-0.5 ns normal; +/-1.0 ns worst case

Output voltage into

78 ohms TX pair:

+/-900 mV normal; +/-550 mV worst

case

Page 2-3

Pin 1     RX+

Pin 2     RX-

Pin 3     TX+

Pin 4     No Connection

Pin 5     No Connection

Pin 6     TX-

Pin 7     No Connection

Pin 8     No Connection

1 2 3 4 5 6

8

7

SPECIFICATIONS AND REQUIREMENTS