Installation_Guide | 1 - Installation Guide | 17
Package Contents of S20
• 1* S20 PBX
• 1* Power Adapter
• 1* Ethernet Cable
• 2* Telephony Line
• 4* Rubber Feet
• 1* Warranty Card
• 1* Quick Installation Guide
Package Contents of S50
• 1* S50 PBX
• 1* Power Cord
• 1* Ethernet Cable
• 2* Rack Mounting Kits
• 1* Grounding Stud & Nut
• 4* Rubber Feet
• 1* Warranty Card
• 1* Quick Installation Guide
Package Contents of S100
• 1* S100 PBX
• 1* Power Cord
• 1* Ethernet Cable
• 2* Rack Mounting Kits
• 1* Grounding Stud & Nut
• 4* Rubber Feet
• 1* Warranty Card
• 1* Quick Installation Guide
Package Contents of S300
• 1* S300 PBX
• 1* Power Cord
• 1* Ethernet Cable
• 2* Rack Mounting Kits
• 1* Grounding Stud & Nut
• 4* Rubber Feet
• 1* Warranty Card
• 1* Quick Installation Guide
Package Contents of S412
• 1* S412 PBX
• 1* Power Adapter
• 1* Ethernet Cable
• 4* Rubber Feet
• 1* Warranty Card
• 1* Quick Installation Guide
Install Yeastar S20
Install Telephony Module
Yeastar S20 supports up to 2 modules. The optional modules are as below: