Teo NT1-296 User Manual
NT1-296 Rac
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NT1U-223TC Car
Installation
The NT1-296 Rack is designed to be used in conjunction with
Tone Commander NT1U-223TC ISDN Network Termination
cards. A maximum of 16 cards can be used in each ra ck .
Each NT1U-223TC card contains three NT1 circuits, with support for two
terminals per circuit. A fully loaded rack has a maximum capacity
of 48 NT1s and can support 96 ISDN terminals.
The rack supplies power to the NT1 units, and terminal
equipment connected to the NT1s, from a local 120
VAC outlet.
Optional NT1-200/296 Battery Backup Power Supply
and NT1-200 Add-on Battery can be added to the rack to
enable uninterrupted NT1 and ISDN terminal power during a
power failure. A fully loaded rack will operate for 1 hour with the
Battery Backup.
Specifications
NT1-296 Rack (with Power Supply)
Physical Dimensions ...................... 5.2” H x 17.25” W x 6.1” D (12.3” D with Power Supply, rack mount)
U Interface ...................................... (2) 50 position ribbon cable connectors (Amphenol type)
S/T Interface ................................... (8) 50 position ribbon cable connectors (Amphenol type)
Weight ............................................ 3 lbs. (7.5 lbs. with Power Supply)
Operating Temperature .................. 0° - 50° C (32° - 122° F)
Humidity ......................................... 5% to 95%, non-condensing
Short Circuit Protection ................... individual self-resetting current limiting for each NT1 circuit; 20 W max. per NT1
Available Power for Terminals ........ 5 W average per NT1 circuit
Instructions
NT1U-223TC Card
NT1 Circuits .................................... 3 per card
Operating Voltage .......................... 34-56.5 VDC
Power Consumption ....................... 1.8 W typical
Physical Dimensions ...................... 5.2” H x 1” W x 5.5” D
S/T Interface ................................... (2) 8 position modular jacks per NT1 circuit (front panel access);
50 pin ribbon cable access through rack
U Interface ...................................... 50 pin ribbon cable access through rack
Weight ............................................ 7 oz.
Operating Temperature .................. 0° - 50° C (32° - 122° F)
Humidity ......................................... 5% to 95%, non-condensing
NT1-296 Rack Power Supply
Power Requirements ...................... 120 VAC, 60 Hz, single phase, 4 A max.
Output ............................................. 42-55 VDC nominal 300 W max.
Physical Dimensions ...................... 4” H x 12.4” W x 6.2” D
Weight ............................................ 4.5 lbs.
Contents of Shipping Boxes
Rack: Card:
(1) NT1-296 Rack (4) 10-24 x ¼” mounting bracket screws (1) NT1U-223TC Card
(1) Power Supply (2) #6 self-tapping screws for securing Power Supply (1) Faceplate
(2) Mounting brackets (1) Installation Instructions (this document)
13-102848 Rev. G
October 2005
Tone Commander NT1-296 Rack / NT1U-223TC Installation Instructions
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 NT1-296 Rack within 12” of a heat source.
• The socket-outlet shall be installed near the equipment and shall be easily accessible.
Rack Mounting
1. The NT1-296 Rack can be mounted in an EIA standard 19” commercial or 23” telco rack.
2. Attach the mounting brackets to the rack in a 19” or 23” mounting position as needed, using the
supplied mounting bracket screws.
3. Mount the NT1-296 to the 19” or 23” rack standards using suitable fasteners.
Bracket Positions – 19” Rack Bracket Positions – 23” Rack
Power Supply
Attach ribbon cable connectors to the back panel before mounting the power supply (refer to page 5).
1. Plug the power output cable (red and black wires) into the POWER connector on the rack back panel.
2. Insert the tabs on the top edge of the power supply into the slots on the top panel of the NT1-296 as
shown below.
3. Pivot the power supply down until the lower tabs lock into the slots on the rack back panel. You may
need to lift the power supply slightly to insert the lower tabs into the rack. Make sure the power cable
is not pinched.
• To remove the power supply, lift up, then pull back on the power supply to disengage the lower tabs.
Rack Mount Power Supply Installation
Page 2 13-102848 Rev. G
Wall Mounting
w
w
Note – When mounting the NTI-296 Rack in conjunction with a Battery Backup unit, refer to the
NT1-200 Battery Backup/NT1-200 Add-on Battery Installation Instruc tions (d oc. #13-102688)
for proper mounting positions.
1. Remove all circuit cards from the rack. Disconnect the power supply and set it aside.
2. Attach the mounting brackets to the rack in the wall mounting position, using the supplied mounting
bracket screws.
3. Fasten a plywood sheet to the wall.
4. Hold the rack up to the wall to mark the hole locations, then pre-drill the mounting holes for the rack.
Make sure that the power cord can reach a local 120 VAC, 60 Hz, single phase grounded power outlet.
5. Attach the rack to the plywood using four suitable fasteners (such as #10x¾” pan head self-tapping
screws). A fully loaded NT1-296 Rack weighs 14.5 lbs.
When mounting the rack to the wall, ensure that the power supply vents are not obstructed or
flush against the wall.
6. Remove the top bracket mounting screw on each side of the rack and tilt the rack forward to connect
ribbon cable connectors. After all cables are connected, replace mounting screws and install the cards
– see page 4.
Remove This Scre
Bracket Positions – Wall Mount Tilting Rack for Cable Access
Power Supply
For wall mounting configurations, the power supply mounts on top of the NT1-296.
1. Slide the grooved tabs on the power supply into the slots in the front of the rack top panel as shown
below. Use the slots directly behind the two screw holes at the front of the top panel.
2. Tilt the rear of the power supply down to insert the back tabs into the rack top panel, then push the
power supply back to secure it.
3. Insert the two retaining screws into the rack top panel, in front of the power supply, to prevent the
power supply from sliding forward.
4. Plug the power supply output cable (red and black wires) into the POWER co nnector on the rack back
panel.
Retaining
Scre
Wall Mount Power Supply Installation
13-102848 Rev. G Page 3
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