When we talk about “CPE”, we refer to the ISP “router”, which is a device that includes:
Router: a host that has two network devices that communicate two different IP networks: ONE public IP address (WAN) and ONE/MANY private IP address(es) (192.168.1.1) (LAN).
Modem: a media converter from the ISP network standard (DSL/DOCSIS/GPON/4G) to ethernet.
Switch: typically the ”LAN” side of the router has four ethernet ports.
Wireless Access Point: typically the ”LAN” side of the router has Wi-Fi connectivity. Think of it as if the switch had another port with a media converter (ethernet to Wi-Fi).
DSL modem-router
Before starting the practice, remember the acronyms:
ISP: Internet Services Provider.
CPE: Customer Premises Equipment.
WAN: Wide Area Network (the ISP network).
LAN: Local Area Network (your home network).
GPON: Gigabit Passive Optical Network. Standard fiber optics for ISP use.
FTTH: Fiber to the home. Typically uses GPON standard.
DSL: Digital Subscriber Line.
AP/WAP: Wireless Access
Practice
Scenario 1: DSL installation under Spanish ICT
You have 6 RJ-45 sockets available for the end user:
2 for voice use (test with analog telephones).
4 for data use.
Scenario 2: DOCSIS installation under Spanish ICT
You have 6 RJ-45 sockets available for the end user:
2 for voice use (test with analog telephones).
One of them via passive mux.
The other one directly to the CPE.
4 for data use.
About the two “F” sockets. You can:
Leave one of them unused.
Use all of them (you will need a 3-way splitter)
Scenario 3: GPON installation under Spanish ICT
You have 6 RJ-45 sockets available for the end user:
2 for voice use (test with analog telephones).
One of them via passive mux.
The other one directly to the CPE.
4 for data use.
Why two telephone sockets?
The DOCSIS and GPON CPEs usually come with two RJ-11 sockets. They are called ATA (Analog telephone adapters). These sockets connect to the same telephone number but they use independent channels. You could make/receive two calls at the same time
