Installation guide

1-15
Cisco 6260 Hardware Installation Guide
OL-2365-02
Chapter 1 Product Overview
Cisco 6260 System Overview
1.2.3.2 Quad-Port DMT ATU-C over ISDN Line Card Overview
The quad-port DMT ATU-C over ISDN line card (4xDMT over ISDN)
• Supports four ADSL modem connections
• Converts ADSL modulation from the line into digital data streams to and from the NI-2 card
• Negotiates the line rate with the CPE when it trains and bases the rate on line quality and distance
• Contains filters that reject the ISDN spectrum (or signal) during operation
• Separates DMT signals from, or combines them with, ISDN signals, if the CPE includes ISDN
telephone service (in a configuration with a connected POTS splitter)
If provisioned, the 4xDMT over ISDN rate adapts to the maximum bit rate negotiable on the line. The
maximum bit rate settings are provisioned in the management software.
The chassis can include up to 30 4xDMT over ISDN line cards, for a total of 120 ADSL
modem connections.
Note For hardware specifications for the 4xDMT over ISDN line card, see the “Quad-Port DMT over ISDN
Line Card” section on page A-4.
ACTIVE Green solid The line card is activated.
Off The line card is not in service.
ATUC-1 Green solid Modem 1 is trained.
Green blinking Training is in progress for modem 1.
Off Modem 1 is idle.
ATUC-2 Green solid Modem 2 is trained.
Green blinking Training is in progress for modem 2.
Off Modem 2 is idle.
ATUC-3 Green solid Modem 3 is trained.
Green blinking Training is in progress for modem 3.
Off Modem 3 is idle.
ATUC-4 Green solid Modem 4 is trained.
Green blinking Training is in progress for modem 4.
Off Modem 4 is idle.
Table 1-3 4xDMT LED Indicators (continued)
LED State Function