Vertical SUMMIT IP
Hardware Description and Installation Manual
Issue 1.2
20
4.4 SUMMIT IP KSU Main Board Unit (MBU)
One of two (2) MBUs (MBUAD or MBUID) is factory install in the SUMMIT IP KSU. The
specifics of each MBU are discussed in sections 4.4.1 to 4.4.2.
4.4.1 MBUAD (Main Board Unit)
Description
The MBUAD, which is shown in Figure 4.4.1-1, controls communication between the
peripheral interfaces, supervises all resources in the system, controls the gain adjustment
of the PCM signal, generates the System tones, and manages System call processing. The
MBUAD contains switches for database protection and initialization. A built-in LAN port
provides access to the SUMMIT IP Web Admin and basic VoIP channels. In addition, a
USB port is provided to allow backup and restore of the system database.
The MBUAD has 4 (four) CO lines, eight (8) DKT station and 4 SLT interfaces, and two (2)
VoIP channels. The CO line ports support loop start CO lines with detection of supervisory
signals including Caller Identification (CID), Polarity Reversal (PR) and Call Progress Tone
(CPT) detection.
The SLT line interface of the Hybrid ports supports FSK (ITU-T V.23 or Bell 202) or DTMF
(ITU-T Q.23) Caller ID and the Message Wait Indication (MWI), DTMF detection, sinusoidal
ringing generator, -48V DC feeding voltage, current limiting and GR-909 Line Testing
function.
A VoIP channel is required to support each SIP Trunk line, LIP or SIP Phone, and remote
users and devices. The two (2) basic VoIP channels on the MBU can be increased to eight
(8) with an unlock code.
As shown in the figure, the MBU has connectors for the various option boards including
connector CN1 which is used to connect optional Interface boards. A maximum of two (2)
Interface boards can be installed with the first board mounted on the CN1 connector of the
MBU and the second mounted on the pass-through connector on the first board. Interface
boards available for the MBUAD include:
CH204 - CO Line & Hybrid board, 2 CO & 4 Hybrid ports
CH408 - CO Line & Hybrid board, 4 CO & 8 Hybrid ports
CD408 – CO Line and Digital telephone board, 4 CO & 8 DKT ports
HYB8 - Hybrid board, 8 Hybrid ports
CS416 - CO Line & SLT Board, 4 CO & 16 SLT ports
SLB16 - SLT board, 16 SLT ports
DTIB8 – Digital telephone board, 8 DKT ports
WTIB4 - Wireless Terminal Interface board, 4 Base Station ports
