52
Figure 36. TX Power Setting.
In Fig. 36 the power setting can be set between -6 dBm and + 24 dBm. Please note that there is a dash ”-”
between the values, not a minus sign.
iPasolink power setting is made using real
dBm
units (decibel relative to 1 mW). For reference, the various
units are as follows:
1 W =
1000 mW = +30 dBm =
0 dBW
0,1 W =
100 mW =
+20 dBm =
-10 dBW
0,01 W =
10 mW =
+10 dBm =
-20 dBW
0,001 W =
1 mW =
0 dBm =
-30 dBW
Note. The previous generation NEC Pasolink NEO used power setting in “dB relative to the maximum
available power”.
RX Threshold
: use the default setting -50 dBm. This is the target minimum received level, below which the
opposite end transmitter power will be increased when ATPC is in use. This setting may need to be changed
when this element is using MTPC and the opposite end is using ATPC and both without AMR. Asymmetrical
ATPC/MTPC may be required in a hub by using ATPC at the remote sites, and MTPC at the hub site.
Default
setting.
SYNCHRONIZATION SETTING
Provisioning – Equipment Clock / Synchronization Setting -> Equipment Clock Setting -> Modify/Edit
This setting defines the timing source for the IDU so that there is no timing loop. The general rule is that
one end of the hop is
Master
and the other end is
Slave
. More complex situations (chain, ring) need to be
considered separately.
(It is also possible that all network elements are
Slaves
, when the
Clock Card
option is used)
Master
is synchronized to the internal free-running clock of its Main Card (
Internal
tai
Freerun
).
Slave
is
then synchronized to the
Master
using the received signal from radio/modem towards the
Master
.
