Teo NT1B-300 Rack User Manual
Nt1b-300 rack installation instructions
13-280113 Rev. B
September 2007
The NT1B-300 Rack houses 24 Tone Commander
NT1B-300TC ISDN Network Terminations
in a 19” rack, 23” rack, or wall mount
configuration. The rack is also compatible
with Lucent NT1B-300 NT1s.
The rack supplies power to the NT1 units
and terminal equipment connected to the
NT1s from an integral power supply. An
optional NT1-200 Battery Backup Power
Supply can be added to the NT1B-300
Rack to provide uninterrupted NT1 and
ISDN terminal power during a power failure.
Specifications
NT1B-300 Rack with Power Supply
Capacity ......................................... 24 NT1s (48 ISDN BRI terminals)
Physical Dimensions ...................... 5.22” H x 17.25” W x 7” D (fits 19” or 23” rack, 3U rack height)
Weight ............................................ 7 lbs. without NT1s; 12 lbs. with 24 NT1s
Operating Temperature .................. 0
° – 40° C (32° – 104° F)
Humidity ......................................... 5% to 95%, non-condensing
Short Circuit Protection ................... Individual self-resetting current limiting for each NT1; 20 W max. per NT1
Standards Compliance ................... UL, cUL 60950
Input Power Requirements ............. 120 VAC, 60 Hz, 5 A max.
Output Power ................................. 48-55 VDC, 240 W max.
Contents of Shipping Box
• NT1B-300 Rack with Power Supply
• 19”/23” mounting brackets (2 each)
• 10-24 x ¼” mounting bracket screws (4 each)
• Installation Instructions (this document)
Optional NT1B-300 Rack Locking Kit (Model 102933)
Important Safety Instructions
• This equipment is intended for installation in a restricted access location (dedicated equipment
rooms, equipment closets, or the like) in accordance with Articles 110-16, 110-17, and 110-18
of the National Electrical Code, ANSI/NFPA No. 70.
• Never install telephone wiring during a lightning storm.
• Never install telephone jacks in wet locations unless the jack is specifically designed for wet
locations
• Never touch uninsulated telephone wires or terminals unless the telephone line has been
disconnected at the network interface.
• Use caution when installing or modifying telephone wires.
• Do not mount the NT1B-300 Rack within 12” of a heat source.
• The socket-outlet shall be installed near the equipment and shall be easily accessible.
NT1B-300 Rack
Installation
Instructions