LINK SIGNAL TYPE
Three different signals can be used to establish a
Link: a Link Code Word, an NLP or an MLT-3 waveform.
The Link Code Word is
specific in both Link speed
and duplex mode. The NLP
is specific in speed
(10Mbps) but ambiguous in
duplex mode (half or full).
The MLT-3 waveform is also
specific in speed (100Mbps)
but ambiguous in duplex
mode. Duplex modes for
equipment that use NLP or
MLT-3 signaling must be
known to ensure proper Link operation.
(Example: a switch port can be configured to a
100Mbps full duplex mode of operation. Most switches
use MLT-3 signaling for this mode. When this port is
connected to a NIC in a full Auto-negotiating mode, the
NIC will assume the switch port is in a half duplex mode
based on the MLT-3 signal. The duplex configuration
mismatch will cause the Link to perform poorly due to
high error rates and collisions.)
The LanMaster 25 indicates an NLP signal by
alternately blinking the 10TX and 10FD indicators. An
MLT-3 signal is indicated by alternately blinking the
100TX and 100FD indicators. When this condition
exists, both Link Partners must be configured for the
same speed and full duplex mode or one must be
configured for half duplex operation and the other in full
Auto-negotiation mode for the Link to operate properly.
BATTERY LIFE
The LanMaster 25 remains on until the “Test”
button is pressed and released a second time. Check
that the unit is off (all indicators are dark) after each test
to conserve battery life.
APPLICATIONS
Network Planning - Identify capabilities of installed
equipment for LAN upgrades without opening the case.
Installation - Verify physical layer connectivity to the far
end. Link activation signals verify two way continuity and
identify connected hub/switch port.
Trouble Calls - Reduce troubleshooting time by
ensuring the Link is active and no faults are detected.
Locate physical layer problems with built-in tone
generator and standard tone probe.
Moves, Adds and Changes - Identify correct wire pair
with tone generator feature and verify Link is operating
after punching down new connections.
Network Management - Test current configuration of
installed equipment to determine if modes have been
configured manually and type of Link signaling used.
WARRANTY
Psiber Data Systems Inc. warrants that the product shall be free from defects in
parts or workmanship for a period of 12 months from the date of purchase if used in
accordance with Psiber Data Systems Inc. operating specifications.
THIS IS THE ONLY WARRANTY MADE BY Psiber Data Systems Inc. AND IS
EXPRESSLY MADE IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR
IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE.
Should any parts or workmanship prove defective, Psiber Data Systems Inc. will
repair or replace at Psiber Data Systems’ option, at no cost to the Buyer except for
shipping costs from the Buyer’s location to Psiber Data Systems Inc. This is Buyer’s
SOLE AND EXCLUSIVE REMEDY under this Agreement.
This warranty does not apply to products which have been subject to neglect,
accident or improper use, or to units which have been altered or repaired by other than a
Psiber Data Systems Inc. authorized repair facility.
Return of Equipment - To return a product to Psiber Data Systems Inc., first
obtain a Return Authorization number from our Customer Service by calling 619-287-
9970. The RA# must be clearly marked on the shipping label, or the package will not be
accepted by Psiber Data Systems Inc.
See sample label below.
To:
Psiber Data Sytems Inc.
7075-K Mission Gorge Road
San Diego, CA 92120
RA# XXXXXXXX
LanMaster, psiber and the Psiber logo are trademarks of Psiber Data
Systems Inc. Copyright 1998 Psiber Data Systems Inc. All rights reserved.
Part No. 1005-0250-0000 Rev B
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USERS GUIDE
