aleen EAR 5000 Manuel d'installation et de programmation - Page 19
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Description and Installation
2.1 The Basic System
The EAR 5000 comes with two lines and three hours recording time.
You can upgrade the EAR 5000 by:
•
Adding a two line expansion card to the motherboard to provide four lines
Figure 2-1 Options for Upgrading the Basic System
2-2
Installation and Programming Manual