LCN System Installation 16-2 9/96
16.5
16.5 CONNECTION TO THE ETHERNET
ESD Wrist Strap
Use ESD
Wrist Strap
Use an ESD Wrist Strap grounded to the electronics chassis when
connecting or disconnecting cables.
The connection to the Ethernet is made through a Media Access Unit (MAU) designed to
interface a 10base-5 Ethernet or a 10base-2 Ethernet. The MAU is located in the bottom,
front compartment at the end of the Ethernet Extension Cable. See below.
DEC21040
T
ransformer
10base-T I/F
10base-T
RJ - 45
DB - 15
Ethernet
Motherboard
Ethernet
Extension Cable
51191783-100
External
10base-5
10base-2
AUI
Transceiver
16297
Figure 16-1 — Connection to an Ethernet 10base-5 Network Using an MAU
The 10base-T connection can be made directly into the RJ-45 connection on the rear panel.
• The 10base-T cable from the hub must be long enough to allow for the 15-inch
extension of the electronics module when it is being serviced.
• The 10base-T cable must be tie-wrapped to the existing cable bundle, but do not place
any tie-wraps between the U-shaped bracket and the bend in the cable bundle (back 15
inches).
Etherne
MAU
LCN MAU
IKBI2
SCSI Bus
Terminator
16304-B
LCNP
Line
Out
Mic
In
Line
In
10BaseT KB SVGAMouse
Ethernet
COM 2
COM 1
SCSI
Dual Monitor
Touchscreen
Lower
Monitor
Upper
Monitor
PRPHRL PWR PRPHRL PWR
AC
Power
Printe
Ethernet MAU
RJ-45 PC Keyboard
Mouse
Monito
Parallel
Integ KB
PS/2 Cable
Figure 16-2 — Console Electronics Module Rear Panel Connections
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