LG-Nortel IP LDK-20, Руководство по программированию

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IP LDK-20 Programming Manual System Feature
217
2.17 2B Function
Description
This feature allows to connect secondary devices to a primary station. To extend a primary, the
additional device is connected directly to a primary station with a 2B module. There are 3 kinds of 2B
module that can be used with some LKD model stations – DTIU, SLIU. One type(DTIU) allows of the
addition of a second DKTU, the other(SLIU) allows of the addition of SLT devices (station, fax, answer
microphone or modem).
Operation
Because the second device required the additional power, a small power supply is needed at the 2B
module when the distance between primary station and second device is long.
Figure 2.17.1 The connection of second devices to primary station
The figure 2.17.1 describes that the second devices connect to primary station with 2B module.
Condition
1. This feature is available at LKD model stations(with 8/30/44 button) and SLIU, DTIU 2B option
modules are needed.
2. The maximum station capacity of the system is the same even if the 2B phone is used.
3. In IP LDK system, one station is designed as one voice channel. To use 2B feature, the primary
station should be connected to an odd port. When DKTU with 2B option is installed, the next port
should not be used.
4. The second station operates as the same with a normal station. But, the second SLT is not
available for the message wait lamp.
IP LDK System
STA 100
STA 101
STA 102
STA 103