Nortel DualMode 800, Maintenance Manual

Page: 49 / 216

Nortel Networks Confidential Transmit Receive Unit (TRU) 1-35
Wireless Solutions DualMode 800 Enclosure Maintenance Manual MTX08
Table 1-3
TRU Fullscreen commands (continued)
P Detect
SAT,ST,RSSI SAT, ST,
RSSI, A (all)
Signal
reading area
displays:
-000.0
Constantly measures SAT, ST, and RSSI detected on the
assigned port of the current path (set by the M and N
commands) until the “Return” key is pressed. Updates the
RX SAT
,
RX ST
, and
RSSI
fields on the left hand side of the
Signal Readings area on the display.
Note:
The M and N commands must be set prior to this
command.
R Set RX/TX
Audio TX
RX
BOTH
OFF TX—unmutes the TX audio; mutes the RX audio.
RX—mutes the TX audio; unmutes the RX audio.
BOTH (TX RX)—unmutes both TX and RX audio.
OFF—mutes both TX and RX audio.
The status is shown in the
Audio
field.
T Set TX/RX
Audio Sens TX -xx.x
RX -xx.x Sets the audio sensitivity for the entered TX or RX path.
The selected audio sensitivity levels are shown in the
Audio Sens
fields.
The limits for the TX and RX audio sensitivity are:
TX Sens: -28.0 dBm
≤
-xx.x
≤
-10.0 dBm
RX Sens: -28.0 dBm
≤
-xx.x
≤
-16.0 dBm
Note:
Set both TX and RX Sens to -18.0 in the tests
described in this manual.
TDMA mode functions (available to the TDMA mode only):
Code Command Status Action/Initial Value
G Set DVCC 01..FF
(hexadecimal) Sets the Digital Verification Color Code (DVCC) transmitted
by the TRU when the TRU transmitter is enabled. DVCC is
an 8-bit verification code transmitted between the mobile
and the base station. It is used in TDMA cellular to
differentiate between mobiles on the same frequency.
H Set Slot 1..3 The TRU currently supports Full Rate (3 slots) coding, that
is, three mobiles sharing one frequency.
This command sets the current TDMA slot used by the
TRU for DVCC transmission and signal measurements.
P Detect DVCC,
RSSI -000.0
Y/N Displays if current DVCC setting is detected and/or the
RSSI measurement on the current slot of the antenna
setup. The status will be displayed in the
RX RSSI
and
RX
DVCC
fields.
T Standalone
TX on/off Allows the TRU2 and TRU3 to transmit without using a
single-channel PA (see PA type in Table 1-4). This is used
for either low power testing or on low power cell sites.
- End -
AMPS mode functions (available to the AMPS mode only):
Code Command Status Action/Initial Value
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