Samsung iDCS 500 Manual page 22

BRI (S0T0) CARD
There are options for termination as follows.
- ON : with termination.
- OFF: without termination.
Insert the card into any universal slot. Push firmly in the middle of both card ejectors on each card to
ensure that it is fully inserted into the back plane connector.
NOTE: Do not insert this card with system Power ON.
8MWSLI CARD
There is an internal or external ring option on this card. Insert as many 8MWSLI cards as are needed
into universal slots 1 through 7. Push firmly in the middle of both card ejectors on each card to
ensure that it is fully inserted into the back plane connector.
This card automatically detects DTMF or dial pulse signals from the SLT. Software and hardware
settings are not required. The 8MWSLI supports industry standard message waiting lamps on single
line phones. The message waiting power supplied to the single line station in the iDCS is 90 to 100
VDC. The 8MWSLI has no DTMF receivers; it will share the system wide DSP resources for DTMF
decoding. When the 8MWSLI cards are highly utilized with congested traffic, the ratio of DTMF
receiver will be decreased. Therefore, the MFM boards or daughter board should be added to a
processor card to relieve the bottleneck.
NOTE: 1. If a cabinet is equipped with a single power supply unit (PSU-B), a maximum of 56 station
devices may be connected to that cabinet. However, if the cabinet is equipped with two power supply
units, a maximum of 120 station devices may be connected to that cabinet.
section of the General Description Guide for more details
2. Do not connect devices with a total REN greater than 5.0 to this card. (Except for Australia. Australia
3. Ringer Frequency:
4. This card does not contain OPX over voltage protection circuitry.
5. The message waiting circuitry only illuminates the message lamp when the station is idle.
6. SLI port feed voltage is nominally 50VDC.
use an external ringer.)
External Ringer, 20Hz , 80Vrms , SINUSOIDAL WAVE (For Australia, and Italy)
Internal Ringer, 25Hz, 80V , RECTANGULAR WAVE (For the other countries in Europe)
Therefore, an 8SLI card and the 8MWSLI card follow the same configuration rules when considering
a single or double power supply.
See the configuration
.
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