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GDK-100
DIGITAL KEY TELEPHONE SYSTEM
38
The MOHU can be connected to any kind of single line interface including 2B-SLIU30.
This module may be available to support special local market conditions.
2.4.13.4 2B-module
The 2B-module allows another terminal, DKTU (Digital Key Telephone Unit) or SLT (Single line
Telephone) behind LKD-30DS to be connected. There are 2 kinds of 2B-modules; 2B-DTIU30 for the
connection to another DKTU behind LKD-30DS, and 2B-SLIU30 for the connection to another SLT behind
LKD-30DS. These 2B-modules can be only installed in LKD-30DS. See Figure 2.4.5 2B modules.
In GDK-100 system, LDK-30DS with 2B-module can be connected to every even-numbered port
(0,2,4,…) of DTIB12/DTIB24/DSIB. In that case, any digital terminal can not be connected to the
consecutive port (1,3,5,…). So the total capacity of DTIB12/DTIB24/DSIB is not changed by the
connection of 2B-module.
The advantage of 2B module in GDK-100 system;
1. Simple wiring with two terminals.
2. DTIB is capable of connecting to single line device through 2B-SLIU30. It is useful for the
customer who wants more single line devices even though DTIB is installed in the system.
3. DTIB is capable of connecting to single line device such as Fax/Modem without any SLIB board.
2B modules are supported in the following condition
-
Software: 3.2 or later version (except 3.4 version)
-
Hardware: Digital Terminal Interface only, LKD-30DS, 2B-DTIU30 or 2B-SLIU30
-
Line length. See
Table 2.3.4 Electrical Specifications
!
Note:
1. In case of using 2B-DTIU30 and the secondary digital keyset, it is recommended to use the
separate mains adapter, which confirms to the appropriate national or local electrical
adapter for the secondary DKTU.
2. The separate mains adapter can be get in local market, the recommended specification is;
-
Output capacity: 24 to 30Vdc, more than 200 mA
-
Size of output plug: the inside diameter - 2.1mm, the outside diameter: 5.5mm
The following table shows LKD series which the 2B module can be installed.
DKTU
2B-DTIU30
2B-DTIU30
LKD 30DS
Yes
Yes
LKD 30LDS
X
X
LKD 8DS
X
X
LKD 2NS
X
X
For more details, see “ Installation manual for 2B-DTIU30 and 2B-SLIU30
”.
Содержание GDK-100
Страница 2: ...GDK 100 DIGITAL KEY TELEPHONE SYSTEM ii Blank sheet ...
Страница 52: ...GDK 100 DIGITAL KEY TELEPHONE SYSTEM 43 LKD 2NS LKD 8DS LKD 30DS LKD 30LD Figure 2 4 3 LKD Digital Keysets ...
Страница 53: ...GDK 100 DIGITAL KEY TELEPHONE SYSTEM 44 GSX 8BTN Figure 2 4 4 GSX Electronic Keysets GSX 33 EXE ...