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 ===

• left Y01 PCM in (from BSC): RJ45 pin 4,5
• Y02 PCM out (to BSC): RJ45 pin 1,2
• Y03 PCM connected 1:1 with Y04 PCM

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: {{{
Cell config: Not hopping
No Concentric Cell = 0
Radiomeasgran =254
No Power Reduction = 0
Excessive distance =0 disabled
}}}

• 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