Table of Contents
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Functional Block
Self-Diagnostic Function
ASIC
LED Display Circuit
External Interface
Connector
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
Carried out with outsire-line interface in a pair (only one port)
Speech path test, Dial pulse test, DTMF test
EC bus interface function
CT bus interface function
Local bus interface function
Time switch function, Gain controlling function
Intelligent PIO function
Card status indicating LED: Two colors (Red/Green)
Extension
50pin Amphenol connector: 1
interface
Power failure
4pin modular jack: 2
forwarding
6
Functional contents
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Table of Contents
