Psiber Data Systems LANMASTER 30 Handbuch Seite 3

English
telephone circuit Identification
While the unit is conducting the telephone
test, the "TEL" indicator will blink on and
off. During the first two seconds of the test,
each combination (64 total) of two wires are
scanned for signals and each voltage meas-
urement is recorded. If telephone line voltage
is detected on wire pair 4,5 and no signals are
present on any other pair, the "TEL" indicator
is illuminated showing that an analog phone
line has been detected. If 24VDC or 48VDC is
detected between wire pairs 3,6 and 4,5 (S/T
interface) or sealing current on pair 4,5 (U interface), the "ISDN" indicator is
illuminated showing that an ISDN circuit has been identified. If appropriate
voltage levels are detected on one or more wire pairs, the "PBX" indicator is
illuminated showing that a PBX type switch or a multiple line phone circuit
has been detected.
NOTE: If voltages above expected levels are measured, the "SIGNAL"
indicator is lit showing that an unknown and potentially damaging voltage is
present. The user should identify the equipment installed at the far-end prior
to connecting any devices to the outlet under test.
10baset/100basetX link Identification
While the unit is conducting the 10baseT/100baseTX Link test, the
"10T" and "100T" indicators will blink on and off. If an MLT-3 waveform is
detected or a Link Code Word is decoded for
100baseTX operation, the "100T" indicator is
illuminated showing a 100baseTX connection.
If a Normal Link Pulse (NLP) is detected or
a Link Code Word is decoded for 10baseT
operation, the "10T" indicator is illuminated.
If a Link Code Word is decoded for 10/100
auto-negotiation, both the "10T" and "100T"
indicators are illuminated showing that the far
end equipment is capable of auto-negotiating
to either the 10baseT or 100baseTX mode of operation. The LanMaster 30
does not test 100baseT4. The "SIGNAL" indicator will be illuminated if a Link
Code Word is detected that is invalid or contains a reported Fault or the MLT-
3 waveform frequency is incorrect.
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English
token Ring link Identification
While the unit is conducting the Token Ring Link test the "TR" indicator will
blink on and off. The Model 30 transmits the
standard Token Ring phantom voltage between
wire pairs 3,6 and 4,5. If the measured current
is within the correct range, the voltage is main-
tained to allow the unit to be inserted into the
ring. Once inserted in the ring, the "TR" indica-
tor is illuminated . The "SIGNAL" indicator is lit
if the current is below the specified operating
range, indicating a possible open wire.
no link – blinking/continuous
When no signals are detected during any of the three previous tests, wire
pairs 3,6 and 4,5 are checked for continuity. The "NO LINK" indicator will
blink on and off when continuity is detected. Continuity typically shows that
the outlet is connected to an unpowered 10/100 Ethernet port or a discon-
nected Type 1 Token Ring connector is at the far end. When no signals or
continuity are measured, the "NO LINK" indicator is illuminated continuously.
Total time to complete all tests is less than eight seconds.
battERY lIFE
Low Battery - When the battery is below the level required for the LanMaster
30 to operate properly, the "SIGNAL" indicator blinks on and off while a test is
being conducted.
cOMPUtER nIc tEStInG
The LanMaster 30 is designed to test a wall outlet which provides the
Ethernet signals on pins 3,6 of the RJ-45 jack. To test a computer Network
Interface Card (NIC), a crossover cable or a crossover coupler which swaps
wire pairs/pins1,2 with 3,6 must be used. A crossover coupler is provided as
part of the optional Model AP-2 Accessory Pack.
accESSORY PacK
An optional Accessory Pack is availble for the LanMaster 30. The Model
AP-2 Accessory Pack includes a soft-sided nylon carrying case, a 12" RJ-11
patch cable for testing RJ-11 style outlets and an RJ-45 crossover coupler
required to test a computer NIC.
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