Power Requirements; Environment; Architecture - Nortel Enterprise 1000 Reference Manual

Page 148 of 236
Table 34
NTAK10 LED states (Part 2 of 2)
Off
LBK On (Yellow)
Off
CC On (Red)
On (Green)
Flashing
(Green)
Off

Power requirements

Environment

Architecture

553-3023-211 Standard 1.00 June 2001
NTAK10 2.0 Mb DTI card
No far end alarm
NTAK10 is in loop-back mode
NTAK10 is not in loop-back mode
The clock controller is switched on and disabled.
The clock controller is switched on and is either locked to a
reference or is in free-run mode.
The clock controller is switched on and locking onto the
primary reference.
The clock controller is switched off.
Note: See "Clock controller interface" on page 152 in this
chapter for more on tracking and free-run operation.
The 2MB DTI obtains its power from the backplane. It draws less than 2 A
on +5 V, 50 mA on +15 V and 50 mA on –15 V.
The NTAK10 card meets all applicable Nortel Networks operating
specifications.
The main functional blocks of the NTAK10 card architecture include:
• DS-30X interface
• signaling interface
• three microprocessors
• digital pad
• Card-LAN interface
• carrier interface
• clock controller interface