Port Assignment, Termination, Cable Lengths; S Ports - Aastra OpenCom 100 Series Mounting And Commissioning User Manual

Port Assignment, Termination, Cable Lengths

S Ports
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Whether you use the switchable S
depends on your communications requirements and the existing basic accesses.
Note that the S bus requires a terminating resistor of 100 ohms at each end.
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In the case of the OpenCom 100, the S
this setting in the S
You can connect up to eight terminals on every internal S
minals can operate without an external power supply. The length of the four-wire
cable of an internal S
internal S bus is approx. 2 W.
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S Ports on Interface Cards
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OpenCom
R
IAE IAE
The S bus is terminated at one end by the OpenCom 100.
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IAE = ISDN socket (German: "ISDN Anschluss Einheit") or an ISDN terminal.
TR = terminating resistor, the S
This can also be done by an appropriately wired IAE.
OpenCom
R
TR
IAE
The S bus is terminated by the TR at the ends.
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ports for internal or external communication
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port configuration in the Configurator on the Web console.
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bus must not exceed 150 m. The power consumption of each
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TR
termination. The TR must be at the termination of the line.
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TR
IAE
buses are terminated by software. You make
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Installation
bus; up to three of the ter-
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