Technical information

ADC Telecommunications, Inc.
536 C
HAPTER 18: CONFIGURING AND MONITORING CABLE MODEM TERMINATION SYSTEMS
Table 18-22 Modulation Profiles Window Parameters
Adding a Modulation Profile
To add a modulation profile, follow this procedure:
1. In the Modulation Profiles window, click Add. The Modulation Profile -
Add window appears, containing a two-dimensional display.
2. Enter values for the parameters. Refer to Table 18-23.
3. Click Ok to commit the information or click Cancel to exit without
saving.
Parameter Description
Profile Index Dynamically assigned number for each profile.
Request Interval when a request on bandwidth can be sent by the
modem.
Initial
Maintenance
Interval when new modems can start establishing a
connection with CMTS with Initial Ranging Requests.
Station
Maintenance
Interval when modems perform periodic ranging for adjusting
power, timing and frequency.
Short Data Interval when a modem can send upstream PDU, which is less
than one maximum burst size.
Long Data Interval when the modem can send upstream PDU, when one
burst size exceeds one maximum burst size on the short data
interval.