Enterasys Networks 8000/8600 SSR-HTX22-08-AA and SSR-HTX12-08-AA, RJ-45 Connector Pin Assignments

SSR-HTX22-08-AA and SSR-HTX12-08-AA

SSR-HTX22-08-AA and SSR-HTX12-08-AA

Cabling and Connector Specifications

The following table lists the media specifications for the SSR-HTX22-08-AA line card.

Table 46. SSR-HTX22-08-AA Media Specifications

Port Type	Specification
10BASE-T	•	802.3 standard
	• RJ-45 connector wired as Media Data Interface Crossed (MDIX); see
		Figure 39 on page 120 for pin assignments
	• EIA Category 3, 4, or 5 unshielded twisted pair cabling
	• Maximum 100 meters (328 feet) segment length
100BASE-TX	•	802.3u standard

• RJ-45 connector wired as Media Data Interface Crossed (MDIX); see Figure 39 on page 120 for pin assignments

• EIA Category 5 unshielded twisted pair cabling

• Maximum 100 meters (328 feet) segment length

Connectivity Guidelines

To attach the segment cables to your SSR-HTX22-08-AA or SSR-HTX12-08-AA line card:

1.For all the 10/100-Mbps ports, obtain copper cables that have the following pin assignments. The RJ-45 connectors on the SSR-HTX22-08-AA and SSR-HTX12-08-AA line cards are configured as Media Data Interface Crossed (MDIX). You can use Category 3 (“Cat-3”) or higher wire for 10-Mbps segments. For 100-Mbps segments, use Cat-5 or higher wire. The ports automatically sense which type of segment they are connected to and configure themselves to transmit and receive at the appropriate bandwidth.

The following table lists the pin assignments for the RJ-45 connector on the SSR-HTX22-08-

AAand SSR-HTX12-08-AA, and for the RJ-45 connector on the switch, router, or host on the other end of the segment cable.

Table 47. RJ-45 Connector Pin Assignments

Line Card RJ-45 Connector	Pin Number	RJ-45 Connector at Other End of Segment
RXD (receive data)	1	TXD (transmit data)
RXD (receive data)	2	TXD (transmit data)
TXD (transmit data)	3	RXD (receive data)
Unused	4	Unused
Unused	5	Unused

Enterasys X-Pedition 8000/8600 Getting Started Guide 119