SIP-T790 IP Phone User Manual
54
- Multiple expansion stations cascade:
1. Connect two or more expansion platforms with metal mounting fasteners, and
install screws to fix them.
2. Mounting brackets.
3. Use RJ-45 network cable (straight-through cable), one end is connected to the OUT
interface of expansion module A, and the other end is connected to the IN interface of
expansion module B. As shown below: