About McBasic Gigabit
McBasic Gigabit
™ is a low-cost, preconfig-
ured, IEEE 802.3 single-conversion media
converter that converts between 1000Base-TX
twisted pair and 1000Base-SX multi-mode or
1000Base-LX single-mode fiber. It is available
with one RJ-45 connector for the twisted pair
port and an SC connector for the fiber port.
McBasic Gigabit
is a 1U high, stand-alone
unit that includes diagnostic LEDs for each port and a universal (100/240
VAC) power supply.
McBasic Gigabit,
Front View
Installing McBasic Gigabit
McBasic Gigabit
comes ready to install. The only adjustments that may
need to be made come after installation.
To install
McBasic Gigabit
, first make sure that the unit is placed on a
suitable flat surface. Attach the cables between the
McBasic Gigabit
and
each device that will be interconnected, then plug the unit into a reliable,
filtered power source.
Configuring McBasic Gigabit
Once installed,
McBasic Gigabit
can be configured for the following fea-
tures by the end user:
•
Duplex Mode (Default = OFF, Full-Duplex)
•
Master/Slave Mode (Default = ON, Master Mode)
•
FiberAlert
(Default = OFF)
Fiber
LEDs
Twisted Pair
LEDs
Reset
Button
1
McBasic Gigabit™
by IMC Networks
Installation
Guide
D I P S
W I T C H
S
E T T I N G S
McBasic Gigabit
features an 8-position DIP
switch for configuring the unit. This switch is
accessed through a cut-out in the bottom of the
unit.
The following table provides simplified defini-
tions of the function of each switch. More
detailed information follows.
D
U P L E X
M
O D E
The Duplex mode settings of the
McBasic Gigabit
converter are used with
Auto-Negotiation
. The default Duplex mode for
McBasic Gigabit
is Full-
Duplex. In this mode, Full-Duplex is advertised during
Auto-Negotiation
.
To make the unit operate in Half-Duplex, simply move DIP switch
1
from
the
OFF
to the
ON
position. This will allow only Half-Duplex to be adver-
tised during
Auto-Negotiation
. The
Auto-Negotiation
takes place on the
twisted-pair interface only. When the twisted-pair interface is resolved, the
configuration will be encoded into the fiber side. No
Auto-Negotiation
takes
place on the fiber side. As a result, it is usually best to disable
Auto-
Negotiation
on the remote fiber end. Since most gigabit networks run at
Full-Duplex, it is recommended to set the remote fiber end to Full-Duplex.
M
A S T E R
/ S
L A V E
M
O D E
This feature determines which clock will be used between the
McBasic Gigabit
and the device it is connected to (a switch, NIC, or another
McBasic Gigabit
, etc.). Master mode is the default setting, where
McBasic
Gigabit's
clock is used. To change this to the Slave setting, move DIP switch
2
to the
OFF
position.
McBasic Gigabit
will then receive and use the clock
of the other connected device. The Master/Slave mode is only valid for the
twisted pair link.
R
E S E T
B
U T T O N
O
P E R A T I O N
If your unit is running and you change either the Duplex Setting or
Master/Slave mode, you will need to reset your unit before these changes
take effect. The Reset button located on the front faceplate can accomplish
this. To reset the unit, take a slender, non-conductive object, about the
width of a paper clip, insert it into the hole in the chassis, and press the
Reset button inside. Please observe proper ESD procedures when resetting
your chassis. Note that power cycling the unit (i.e. removing the
power
cord and then reconnecting it) will also reset
McBasic Gigabit
.
OFF/ON
FDX/HDX
SLV/MSTR
RESERVED
RESERVED
FA
RESERVED
RESERVED
RESERVED
S1
1
2
3
4
5
6
7
8
2
1
Duplex Mode (ON: Half-Duplex, OFF: Full-Duplex)
OFF
2
Master/Slave Mode (ON: Master, OFF: Slave)
ON
4
FiberAlert
OFF
3, 5-8
Factory Use Only —
DO NOT CHANGE
N/A
S
WITCH
F
UNCTION
D
EFAULT
Q U I C K S T A R T
Introduction
1
Configuration
1
DIP Switch Settings
2
Negotiation
3
FiberAlert
3
Troubleshooting
4
LED Indicators
4
Tech Support
5
