Vertical SUMMIT IP
Hardware Description and Installation Manual
Issue 1.2
27
The following are included on the EMBU:
4 CO Line interface circuits
8 Hybrid interface circuits
1 External Relay contact for LBC or general purpose
1 Alarm Detection circuit
1 PFT circuit [CO1 connects to the last SLT port(STA8)]
PCM Voice Processing circuit (ACT2 - ASIC, voice switching, including DSP)
- PCM Tone Generation and PCM Gain Control
- Tone (DTMF/CPT/FAX) detection and CID Signal (FSK/DTMF/RUS CID)
detection
NOTE
Should AC Power fail, the last SLT port on MBU is connected automatically to CO1.
Connectors, Jacks and Switches
The following chart lists the various connectors for option boards, RJ modular jacks for
connecting CO Lines, Stations and miscellaneous functions, and switches on the Main
Board.
Table 4.5-1 EKSU with EMBU Connector, Modular Jack and Switch Function
Connector
Functions
Remark
CN1
CO and Extension board installation
70 pins
CN5 & CN6
Connection KSU to EKSU with Expansion cable
19 pins x 2
CN7
PSU Connector
7 pins
CN8 & CN9
MG-CMU4 Installation
Not used
MJ1
1/2 CO line
2 ports each
3/4 CO line
MJ2
8 Hybrid (DKT or SLT) ports
8 ports
MJ4
Relay/Alarm
1 port
LED Indications
Table 4.5-2 EMBU LED Indication
LED
Color
Description
LD1
Blue
Flash 300ms ON and OFF, normal operation toggle
LD2
Blue
Station port in use status
ON - A station is in use
OFF - All station are idle