Functional Block
Functional contents
Self-Diagnostic Function
Carried out with outsire-line interface in a pair (only one port)
Speech path test, Dial pulse test, DTMF test
ASIC
EC bus interface function
CT bus interface function
Local bus interface function
Time switch function, Gain controlling function
Intelligent PIO function
LED Display Circuit
Card status indicating LED: Two colors (Red/Green)
External Interface
Connector
Extension
interface
50pin Amphenol connector: 1
Power failure
forwarding
4pin modular jack: 2
5. NAMES AND LOCATIONS
Overview
Inside View
Note:
*Null slot is not available for any optional service cards.
5.1. INSTALLING/REMOVING THE OPTIONAL SERVICE CARDS
Slot Condition
6
Содержание KX-TDA0174
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