Patton electronic 3086 manual Selecting the DSL link speed, Selecting PCM mode

Model 3086 G.SHDSL Integrated Access Device User Guide 4 • Basic Application Configurations

CLI configuration

Configuring the 3086 to transport TDM and IP data concurrently requires use of a Laptop or PC terminal. When carrying IP data, the Model 3086 offers two WAN encapsulation methods: HDLC and ATM. In addi- tion, when connecting two LAN segments over DSL, the 3086 offers options for Routed or Bridged services. The following example shows the configuration for connecting two LAN segments via DSL:

Selecting the DSL link speed

In this example a maximum DSL speed of 2.3Mbps (36 timeslots of 64 kbps each) will be selected, Using the CLI enter the following command:

figshdsl set dslrateTS 36 <enter>

Selecting PCM mode

The PCM mode selection tells the Model 3086 Whether the DSL link will carry TDM data (from TDM port), Ethernet data (from Ethernet port), or both Serial and Ethernet.

In this example we will set the PCM mode for Serial and Ethernet data.

At the command prompt type:

figshdsl set pcmmode EthernetandSerial <enter>

Assigning bandwidth to serial and Ethernet ports

In this example, half of the bandwidth 1.152 Mbps (18 TS) assigned to the serial port and the other half 1.152 Mbps (18 TS) assigned to the Ethernet port.

From the CLI command prompt type:

figshdsl set serialTS 18 <enter>

Note Enter the required bandwidth in number of 64kbps time slots for the serial port, the 3086 automatically assigns the rest of the bandwidth to the Ethernet ports. For example, if the total DSL bandwidth is

2.3Mbps (36 TS), assigning 1.152 Mbps (18 TS) to the TDM port, automatically assigns the rest of the DSL bandwidth (18 TS) for Ethernet traffic.

When the 3086 carries both TDM and Ethernet traffic, it places serial data in the upper timeslots of the DSL frame, and Ethernet timeslots to the lower portion of the DSL frame. In the example above, Ethernet data (18 TS) occupies timeslots from 1–18, while TDM data (18 TS) is carried in TS 19–36 of the DSL frame.

Central or Remote terminal (Master/Slave)

In a point-to-point deployment, one the two 3086s IAD must be set to Central (master), and the other to Remote (slave).

TDM Plus Ethernet Traffic 59