Installing The Ethernet Module; Inserting The Ethernet Module - 3Com NETBUILDER II Installation Manual

Installing the
Ethernet Module
Inserting the
Ethernet Module
Table 2-1 AUI Connector Pin Assignments
3
4
5
6
7
8
9
10
11
12
13
14
15
7 Select the slot for the Ethernet module.
You can install the module into any available I/O slot in the rear of the NETBuilder II
system. The wide top slot is designated for the CEC module only.
8 Obtain a small flathead screwdriver, if necessary, to clear a slot for the module
installation.
9 Obtain the thin or thick coaxial cables required for connecting the network to the
Ethernet module.
Once you have performed all the preinstallation steps, you are ready to install the
Ethernet module.
Complete Ethernet module installation involves inserting the module into the
NETBuilder II base system to connect with the backplane, and then connecting to the
network using thin or thick coaxial cables.
Insert the Ethernet module into the NETBuilder II chassis by performing the following
steps:
1 Remove the blanking plate (if one is in place) from the slot you have selected for the
Ethernet module (see Figure 2-3).
Loosen the captive screws (use a screwdriver if necessary), push the ejector clips apart,
and slide the planking plate from the slot.
CAUTION: Remove the blanking plate only from I/O slots that will house an I/O
module. All unused I/O slots require the blanking plate covers to maintain proper
cooling of the unit and regulatory compliance. Failure to cover open slots can result in
overheating of the NETBuilder II base system and voiding of the warranty.
Transmit +
Receive shield
Receive +
Power return
Not used
Not used
Collision -
Transmit -
Transmit shield
Receive -
+12 volts
Voltage shield
Not used

Installing the Ethernet Module

2-3