3.3.26  
STLSX2, STLSX4, STLSX4R 
 
NOTE: Danger of damage to property due to surge voltage. The required lightning protection measures must be taken for this board, see Section 2.1.2 "Lightning Protection".  

Introduction  
The following boards provide S0 basic connections:
 •   STLSX4 (Subscriber Trunk Line S0 with ISAC-SX) S30810-Q2944-X = four S0 basic rate accesses for use in HiPath 3550 and HiPath 3350.
 •   STLSX2 S30810-Q2944-X100 = two S0 basic rate accesses for use in HiPath 3550 and HiPath 3350.
 •   STLSX4R (Subscriber Trunk Line S0 with ISAC-SX Rack) S30810-K2944-Z = four S0 basic rate accesses for use in HiPath 3500 and HiPath 3300.
These are operated either as external trunk interfaces in TE (terminal equipment) mode or as internal S0 buses (PMP bus) in NT (network terminator) mode with cross-connected RX-TX lines.

Interfaces  
The board does not supply terminals with power. Power must be supplied locally for telephones, for example via a plug-in power supply unit.  
 Figure 3-80   STLSX2, STLSX4, STLSX4R - Interfaces
 

S0 interface assignment  

 Table 3-109   STLSX2, STLSX4, STLSX4R - S0 Interface Assignment
 X2
Pin  
 S0 Port 1  
 X2
Pin  
 S0 Port 2  
 X2
Pin  
 S0 Port 31  
 X2
Pin  
 S0 Port 41  
 11  
 -  
 21  
 -  
 31  
 -  
 41  
 -  
 12  
 -  
 22  
 -  
 32  
 -  
 42  
 -  
 13  
Transmit +  
 23  
Transmit +  
 33  
Transmit +  
 43  
Transmit +  
 14  
Receive +  
 24  
Receive +  
 34  
Receive +  
 44  
Receive +  
 15  
Receive -  
 25  
Receive -  
 35  
Receive -  
 45  
Receive -  
 16  
Transmit -  
 26  
Transmit -  
 36  
Transmit -  
 46  
Transmit -  
 17  
 -  
 27  
 -  
 37  
 -  
 47  
 -  
 18  
 -  
 28  
 -  
 38  
 -  
 48  
 -  
1Not for STLSX2

Configuring S0 interfaces  
Depending on how the interfaces are applied, use HiPath 3000/5000 Manager E to define the relevant protocols for the trunks to be connected. Please note the additional information contained in the protocol templates when selecting a suitable S0 protocol:
 •   CO = Interfaces to the public CO
 •   Bus = Interfaces to an internal station
 •   Master = Interfaces for a master system network
 •   Slave = Interfaces for a slave system network
 •   H150/H118 or H300 = Defines the CorNet protocol:
   -   H150/H118 = Optimized for interconnection with HiPath 3000
This setting should also be selected in connection with HiPath ProCenter Office HPCO.
   -   H300 = Optimized for interconnection with HiPath 4000
 •   Direct or fixed connection: defines the type of connection for a network and controls the supply of clock pulses:
   -   Direct = Communication systems are connected to one another by means of a direct cable connection. The master system supplies the reference clock pulse for the networked system.
   -   Fixed connection = Communication systems are connected over lines leased from a network provider (with clock pulse supply). The master system receives the reference clock pulse from the network.
    A slave system always receives the clock pulse from the master system regardless of whether the connection is direct or fixed.
Use the S0 interface S0 1 for connection to the public telecommunications network. You can also connect S0 interfaces S0 2 to S0 4 to the ISDN trunk or to ISDN terminals (ISDN telephone, group 4 fax device, PC, dialing aid) via an S0 bus.

Connecting ISDN telephones  
Depending on the system, you can set up a maximum of four internal S0 buses (S0 1 to S0 4). A maximum of eight ISDN terminals can be addressed on each S0 bus.
The system does not assign the MSN until the S0 port is configured on the "Euro bus"; the MSN can be read out via administration.
When you set up an S0 bus, it is assigned an MSN. This MSN is the first free station number in the system. The S0 station is immediately available under this MSN, without an outgoing seizure.
If no MSN is entered in the terminal, a default MSN is automatically assigned after you change the S0 port to "Euro bus" in system administration.  

Configuring an S0 bus with a Mini-Western jack  
S0 telephones cannot be directly connected to an STLSX board's Mini-Western jack via the cable supplied. You must first install a jack with cross-connected cables (see Figure 3-82).
 Figure 3-81   Pin Assignments in MW Jacks
 
 Figure 3-82   Wiring and Ranges for S0 Bus Jacks
 

HiPath 3000/5000 V8, Service Documentation, Issue 10   up Top
Disclaimer & Copyright   ID: P31003H3580S100017620   2011-01-24