Specifications

4-7
TOKEN RING NETWORK CABLING
RJ45 Connector
The 8-pin telephone type RJ45 connector shown in Figure 4-5 is found on
STP cable used for lobe and trunk connections to Cabletron Systems Token
Ring products. The RJ45 port on the device wraps upon disconnection.
Figure 4-5. RJ45 Connector and Pinouts
UTP CABLE SPECIFICATIONS
The following is a summary of specifications for UTP cabling used with
Cabletron Systems Token Ring (UTP) products. Product changes could
produce differences between this summary and the individual product
specifications. Always refer to the specific product installation guide for
current specifications.
Cabletron Systems recommends using EIA/TIA UTP Categories 4 and 5
cable to wire Token Ring connectivity products designed for UTP. Both
categories reliably support 16 Mbps (and higher) data rates.
UTP Construction
Figure 4-6 shows a UTP cable segment. UTP and STP are identical in
design, but UTP does not have the protective shield.
Figure 4-6. Unshielded Twisted Pair Cable
1
2
3
4
8
7
6
5
TX-
RX-RX+
TX+
Plastic Sheath
Twisted Pair