Specifications

Preparing for Installation 2-27
Preparing Network Connections
Typically, Ethernet connectors have either slide-type or jackscrew-type locks. (See Figure 2-14.)
The most common are those that use a slide-type lock, which is the type used on the EIP ports. The
connector on the left in Figure 2-14 shows a slide-type lock. When the cable is connected to the
15-pin port, a metal bracket snaps up over two posts on the cable connector to secure it in the port
and provide strain relief. Instead of the posts and sliding bracket, the jackscrew-type lock (shown on
the right in Figure 2-14) uses two thumbscrews or jackscrews, which are usually attached to the
cable connector. When the cable is connected to the 15-pin port, you secure it by screwing the
thumbscrews into the jackscrews adjacent to the connector.
Figure 2-14 Ethernet Connector Locks, Slide-Type and Jackscrew-Type
The slide-type locks are standard on the EIP ports; however, conversion kits are included with each
EIP to replace the slide-type locks with jackscrews. For specific replacement instructions, refer to
the installation document that accompanies the jackscrew kit.
Fast Ethernet Connection Equipment
The two connectors on the FEIP port adapter are a single MII, 40-pin, D-shell type, and a single
RJ-45. You can use either one or the other. Only one connector can be used at one time. The FEIP
can have up to two port adapters installed. Each connection supports IEEE 802.3u interfaces
compliant with the 100BaseX and 100BaseT standards. The RJ-45 connection does not require an
external transceiver; however, the MII connection does, depending on the type of connection you
use.
The RJ-45 modular connector (see Figure 2-15) has strain relief functionality incorporated into the
design of its standard plastic connector. Figure 2-15 and Figure 2-16 show the RJ-45 and MII
connectors.
Figure 2-15 RJ-45 Connections—Connector and Plug
H1887
Sliding bracket
Post
Jackscrew
Thumbscrew
H2936
8 7 6 5 4 3 2 1
RJ-45 connector