Cabletron Systems MRXI-22 User Manual - Jam Output:

INSTALLATION REQUIREMENTS/SPECIFICATIONS

2-8

JAM Output:

Collisions are propagated through the 

network using the JAM signal of an 

alternating pattern of 1's and 0's in 

accordance with 802.3 specifications for a 

repeater unit.

Fragment Extension: Packet fragments are extended to a 

minimum of 96 bits using the JAM [1,0].

Fault Protection:

Each segment will disconnect itself from 

the other segments if 31 consecutive 

collisions occur, or if the collision detector 

of a segment is on for longer than 

approximately 110 

µ

s. This fault 

protection will reset automatically after 

one packet is transmitted/received onto the 

fault protected segment without causing a 

collision.

INTERFACE CONNECTORS

Network (Twisted Pair) Interface

Type: 

Internally Crossed Over RJ-45 Connector

Pin-out for RJ-45 Connector

Pin 1

RX+

5

No Connection

2

RX-

6

TX-

3

TX+

7

No Connection

4

No Connection

8

No Connection