User Manual

SGD-SB2025NT-TUM, Part 2
Jan 12 Page 58 SOLAR COMMISSIONING
5.3.1.2 Initial Values
The principle is to start with nominal values and assume that these settings will require adjustment
to values better suited to the IP network. This is especially true if the network has a means of
alternate routing or fallback as the configuration offering ‘worst case’ values must be considered.
Note.
These buffer parameter values are global and apply to all channels on a multi-channel
system.
It is necessary to depress the ‘Eng’ button before any setting may be selected from the drop-down
lists (there is no direct entry of values). Any changes must be saved by selecting ‘Apply’.
The suggested settings that are likely to be satisfactory for the majority of networks so that the
initial commissioning may be instigated are:
(a). ‘GO TM Buffer’ and ‘RTN TM Buffer’ set to 60 ms.
(b). ‘GO Traffic Output Time’ and ‘RTN Traffic Output Time’ set to 120 ms.
If network latency is believed to be significant, increasing all settings by a further 40 ms may be
necessary. All times are in 20 ms steps.
5.3.2 Facilities
The item of primary importance on the ‘Facilities’ page is that of selecting the right format of signal
input for the ‘GPS Module’. If the Solar 2 unit also supports an NI, the setting of the ‘GPS Module’
may have already been undertaken through that route. Apart from being able to allocate a ‘Name’
to the TM, the other areas on this page are covered in the ‘Alarms’ and ‘SNMP’ sections of this
manual.
The ‘Facilities’ page of the ‘TM Engineering’ facility is shown below in Figure 52 .
Figure 52. TM Engineering – Facilities page.