Siemens DataNET Hub (DNH) user manual 10BASE-T Cable Requirements, Pin No MDI Function

Ethernet Connections, Continued

10BASE-T Cable Requirements

1.The 10BASET data cable requires a minimum of two twisted pairs (transmit pair and a receive pair). The type wire used should conform to the AT&T D-inside wire (DWI & PDS), or IBM Type 3, or Category 3 or 5 data grade or equivalent specifications.

2.The maximum length of a 10BASET data cable can not exceed 328 feet (100 meters). Typically to increase the distance each DNH will connect to a hub or other type of repeater/medium converter.

3.The cable should be terminated at both ends with RJ-45 STP male connectors. The table below shows the RJ-45 wiring connections for the DNH end of the cable.

Pin No.	MDI Function
1	TX+
2	TX-
3	RX+
4	NC
5	NC
6	RX-
7	NC
8	NC

46 • Installation 2000585-001