Karel MS26s Installation & Maintenance Guide
Edition 3.1
15
DIA Connector
Pin no
Signal
1
SPEECH
2 GND
3 +
5
VDC
4
BELL
The dimensions of the DY01 are 12 cm x 14 cm x 3 cm and the weight is 0.5 kg.
II.5.
EXTERNAL ANNOUNCEMENT SYSTEM
Any external announcement system can be connected to MS26s system through
the 4-pin RJ socket (named DIA - the same socket used by DY01 doorphone) on
MB26s motherboard.
II.6.
BATTERY BACKUP UNIT - BBU38s
BBU38s is a stand-alone power supply module enhanced with battery backup
circuitries.
BBU38s contains two separate boxes, called as the main and battery boxes. The
main box includes a transformer and a card, whereas the battery box is designed to
cover the battery.
IMPORTANT
PS38 Power Adaptor is not used when BBU38s is connected to the MS26s system.
The outlook of both boxes as well as the inner structure of the main box of BBU38s
are illustrated in the following figure.
Summary of Contents for MS26S
Page 1: ...Karel MS26s T e l e p h o n e S y s t e m Installation Maintenance Guide Edition 3 1...
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Page 62: ...Design and specifications subject to change without notice...