BS11Configuration » History » Revision 8
Revision 7 (laforge, 02/19/2016 10:47 PM) → Revision 8/18 (Anonymous, 02/19/2016 10:47 PM)
== Hardware interface == We are using a 120 Ohms balanced connection between the BS11 and a HFC-E1 card. To configure the BS11 hardware correctly, you need to * open the connection between pin 2 and 3 of the 4 jumpers below connector J01 === Cable to RJ45 === The E1 interface[s] of the BS-11 are on some strange BNC-related twinax plugs called "BR2" (Radiall product # 605006000), "RADIALL 605 006 000", you can find the PDF data sheet of the connectors at [http://radiall.applixia.net/catalogue/resource?path=PRODUCT/PDF/TDS/coaxialconnectors/R605006000EN.pdf Radiall] and you can buy them online from [http://webradiall.applixia.net/buyonline?PN=R605006000&LANG=en&SUP=FARNELL this link] (which for Germany results in a hyperlink to [http://de.farnell.com/jsp/displayProduct.jsp?sku=4196995 this page of the Farnell webshop] where they cost EUR 16.51 each). * left Y01 PCM in (from BSC): RJ45 pin 4,5 * Y02 PCM out (to BSC): RJ45 pin 1,2 * Y03 PCM left open * Y04 PCM left open == Configuration of BTSM Object == * BS11 requires PCM30CRC4 64kBit/s no Subslots * OM Layer on Timeslot 1 * TEI for OM Layer default Siemens is 25 (but configurable in BS11 [wiki:LMT]) * the following parameters are not configurable * RSL Layer on Timeslot 1, too * TEI for RSL is fixed in Siemens equipment * TEI = 0 für TRX0 * TEI = 1 für TRX1 * Attention: if you select OM Layer TEI 0 oder 1, RSL can no longer be brought up * Timeslots for TCHs * TRX0: TS2 und TS3 * TRX1: TS4 und TS5 == E1 interface == LI Objekt: Line MULTIDROP Impedance 120 Ohm balanced to connect to HFC-E1 board Additionally you will need to change some jumpers on the connector board of BS11: * dip-switch SW3: * 1-4: off * 5-8: on * TB01: no jumper * TB02: no jumper * TB03: no jumper * TB04: no jumper SW3 is the dip-switch underneath the connector board TB0* are the four jumpers on the left hand side of the connector board. == Database == Important database settings: * the database has to be downloaded from PC via E1 to BS11 * BCCH channel combination Type 5 or 8 (including SDCCH for SMS) * TCH combination 0 or 9 {{{ Cell config: Not hopping No Concentric Cell = 0 Radiomeasgran =254 No Power Reduction = 0 Excessive distance =0 disabled }}}