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GDK-100
DIGITAL KEY TELEPHONE SYSTEM
78
The AC15 can be installed in any of slot No. 1-12.
Analog CO line boards are limited by maximum 32 analog lines in a system.
Add-on board: DTRU
3.4.5.3 EMIB Installation - Korea
The EMIB provides four analog 2-wire E&M interfaces. It can support type I and V of 2-wire E&M.
It is designed to comply with the Korean specification and application, so it may not suitable for the other
national specification and/or application.
Function of LED
LED
Function
Remark
LED1
The status of line 1, ON: in use
LED2
The status of line 2, ON: in use
LED3
The status of line 3, ON: in use
LED4
The status of line 4, ON: in use
Function of various connectors
Connector
Function
Remark
CN1 and CN2
DTRU connection
CN3
The connector with screws for line 1
CN4
The connector with screws for line 2
CN5
The connector with screws for line 3
CN6
The connector with screws for line 4
CN3
Figure 3.4.5.2
Board Layout and DTRU Installation
DTRU
LED1
LED2
LED3