User Manual

AS8100 Sitespan User Guide Version 3.7
605-0000-426
DLP 102
Draft Issue 6.0. Date 4/4/00
Page 225 of 305
5. Each Shelf within a Sitespan domain requires a unique reference number to be allocated
in the TEI drop menu.
6. Set the reference clock source to the DTU connected to the CTU in the AC rack from
where the clock source is derived. This is usually Slot 5 E1-1 for 75ohm Backhaul or
Slot 5 E1-5 for 120ohm Backhaul. Enter the RF card type, Frequency and PN Code and
set the TX gain to 3300 and the RX gain to 2200 ( these are nominal values and are fine
tuned when the RX sensitivity is set)
7. If the shelf is to be managed from the Access Concentrator remotely then check (ü) the
Indirect box. If the Server PC connects to the Shelf Controller on the AS4000 Rack
(each Modem shelf requires a different COM port). Select the Port by clicking ê to drop
the options box and choosing the appropriate communications/serial port. The ports listed
are those available on the Server machine; this may not necessarily be the machine
running the Sitespan Equipment View.
8. Select Master / Slave. When Master is selected Sitespan is in control and objects are
downloaded into the shelf. When Slave is selected objects are uploaded from the shelf
into Sitespan.
9. Select Rx & Tx Frequencies by clicking ê to drop the options box and clicking the
appropriate frequency pair on the drop down list. The frequency pairs are usually
determined as part of the system planning process.