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Introduction
The STMD8 board (subscriber and trunk module digital S0) provides eight S0 ports in Hicom 150 E OfficePro, which can be used
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for S0 trunk connections (via NT) (not for U.S.) |
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for an for point-to-point or point-to-multipoint connection (S0 bus) to the central office (not for U.S.) |
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for S0 networking via S0 lines (CorNet-N or QSig) (not for U.S.) |
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for an S0 bus for connecting ISDN terminals (separate power supply required) |
Switches and LEDs
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LED Statuses and Their Meanings
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LED H300 (see Figure 3-42): Reference clock display (clock is generated if this feature has been configured using Hicom Assistant E Office.) |
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On: Reference clock for clock generator is generated. |
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Off: No reference clock |
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LEDs H301 to H308 (see Figure 3-42) |
S0 trunk Connection (Not for U.S.)
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Table 2-7 on page 2-18 lists examples of maximum line lengths for connecting trunks. |
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Not for U.S.: When starting up S0 ports during operation with PABXs, it is important to ensure that the NT switch is in the POINT-TO-POINT position. |
Point-to-Point or Point-to-Multipoint Connection
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Point-to-multipoint connection (available in Release 2.2 SMR-G and later) You can connect OfficePro on an ISDN multi-device connection (S0 bus) to the central office, allowing you to use it simultaneously with other ISDN devices on the same connection. |
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Maintain the correct polarity on the T/R wires. |
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The phone company assigns an 11-digit DID number (MSN or multiple subscriber number) for telephones to be connected to the S0 bus. There are usually at least three MSNs per basic access. |
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When setting the system-wide ISDN parameters, select DSS1 trunk PMP under Port configuration (code 20 4 1) for the port you are using. |
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Enter the MSN in the table for DID numbers. For each MSN assigned, callers can directly dial a station, group, or hunt group in the OfficePro system. |
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Leave the System number parameter unchanged. |
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Always configure Hicom 150 E OfficePro as the last station on the S0 bus because terminating resistors (2 x 100 ![]() |
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Point-to-point connection Use a point-to-point connection if you have a dedicated line (trunk/tie circuit) or to extend the range if only one telephone is connected to the S0 bus. |
S0 Networking (Not for U.S.)
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For examples of the maximum cable lengths for direct CorNet-N networking, refer to Table 2-7 on page 2-18. |
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S0 Bus for Connecting ISDN Telephones (Not for U.S.)
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S0 Bus-Example of Wall Jack Assignment (Not for U.S.)
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ISDN terminals can also be connected to optiset E telephones (except for entry and standard) using an optiset E ISDN Adapter (permissible configurations are listed in Section 9.3.2.15 on Page 9-27). |
Cable and SU Connector Assignment (Backplane) (Not for U.S.)
Cable and Connector Assignment (Backplane) (for U.S. Only)
Note: Pairs 17 through 25 are not used.
Connecting ISDN Terminals to OfficePro (for U.S. Only)
S0 Bus With RJ45 Jack
To connect ISDN terminals, you must change the signal order so that the transmit wires are on the inside and the receive wires are on the outside, as shown in Figure 3-49 on page 3-122.
To do so, jumper the four wires on the provided line cord to the pins for the STMD8 ports on the main distribution frame (MDF).
The ISDN terminals must have their own local power supply. Refer to Section 9.6.1, General S0 Wiring (for U.S. Only) for information on setting up an S0 bus.
S0 Bus Wiring From STMD8 Port on MDF or From optiset E ISDN adapter (for U.S. Only)
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Hicom 150 H V1.0 - Hicom 150 E Office Rel.2.0-3.0 Service Manual | Siemens Part No.: P31003-M1550-X403-3-7620 | Conversion Date: 2000-08-24 |
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Contact: E-Doku-Team | © Siemens AG 2001 |