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4 • Basic Application Configurations Model 3086 G.SHDSL Integrated Access Device User Guide
62 TDM Plus Ethernet Traffic
Intended Serial Interface Data Rate
Selects the data rate assigned to the serial port in nx64 kbps increments from 64 kbps to a maximum of
2.3
Mbps. The following conditions apply when configuring the 3086 serial port:
• When the 3086 is operating as a simple modem – serial port operation only, the data rate assigned to the
serial port must match the DSL rate (except when selecting 64 or 128kbps, DSL line rate at these speeds is
192kbps).
• When the 3086 transports serial and Ethernet traffic simultaneously, total data rate assigned to both Serial
and Ethernet must match the DSL rate.
• When using the 3086 for simultaneous Serial and Ethernet data transport, assign partial bandwidth to the
serial port only, the 3086 will automatically assign the remaining DSL bandwidth to the Ethernet port.
• When using the 3086 for simultaneous Serial and Ethernet data transport, timeslots (64kbps slots) carrying
serial data are placed in the upper slots of the DSL frame, while Ethernet data is placed in the lower DSL
frame timeslots.
• When the serial port is not used, set the “Intended Serial Interface” to “Not used”. The 3086 will automat-
ically assign all DSL bandwidth to the Ethernet port.
• When using a 3086 with T1/E1 interface, the “Intended Serial Interface” field must match the speed
selected for the T1/E1 port in the T1/E1 configuration menu.
DSL Rate: Number of i Bit
The i bit increments DSL speed by 8kbps in addition to the DSL rate selected in the “Intended DSL Data
Rate” window. Most applications use nx64kbps DSL speeds, leave this setting at “0”, unless your application
calls for a non-nx 64 speed. Selections for the I bit are 0 through 7 as follows:
• 0—No increment
• 1—Intended DSL data rate + 8 kbps
• 2—Intended DSL data rate + 16 kbps
• 3—Intended DSL data rate + 24 kbps
• 4—Intended DSL data rate + 32 kbps
• 5—Intended DSL data rate + 40 kbps
• 6—Intended DSL data rate + 48 kbps
• 7—Intended DSL data rate + 56 kbps
Terminal Type
Select between Remote and Central. Use the “Remote” setting for 3086s located at customer premises. Use
“Central” setting for units located at a Central Office or ISP.
Note
The unit set to “Central” will act as master and will impose DSL rate
on the unit set as “Remote”