Allied Telesis AT-NT118 User Manual
Installation Instructions
AT-NT117 (AC) and AT-NT118 (DC)
ADSL Mini-DSLAMs
The following instructions provide installation procedures for the AT-NT117 (AC) and AT-NT118 (DC) ADSL MiniDSLAMs. Allied Telesyn strongly recommends using proper static protection techniques when installing
and handling this equipment.
Installation Instructions
Step #1 - Unpack and inspect the AT-NT117 or AT-NT118.
You should have the following components:
1) One AT-NT117 or AT-NT118
2) Power cord (for the AT-NT117 only)
3) Rubber feet (4)
4) Rack mount brackets (2)
5) Rack mount bracket screws (10)
If there is visible damage, do not attempt to connect the device; contact Allied Telesyn Technical Support
for assistance.
Step #2 - Install the Uplink Interface Module (AT-NT510, AT-NT530, AT-NT540, AT-NT550, or
AT-NT560). DO NOT POWER UP THE AT-NT117 OR AT-NT118 UNTIL AFTER THE UIM HAS BEEN
INSTALLED.
Unscrew the AT-NT117 or AT-NT118 chassis, using a Phillips screwdriver and carefully lift off the top half
of the chassis; set aside. Remove the blanking plate from the slot selected for the UIM (either slot may be
used). Carefully position the UIM with the faceplate facing out of the vacated slot. Ensure that the
connector between the UIM and the AT-NT117 or AT-NT118 is fully aligned. Secure the UIM in place with
the four provided screws. Replace the chassis top and reattach with all eight screws.
Step #3 - Site selection
When selecting a site for the AT-NT117 or AT-NT118, please consider the following:
§ Maximum recommended ambient temperature is 65°C. Internal temperatures of rack should be
considered.
§ Ensure that the unit is placed in such a manner that the cables will not become a tripping hazard or
become dislodged from the unit.
§ Do not block power supply vents or otherwise restrict airflow when installing unit in rack.
§ Mechanical loading of rack should be considered so that the rack remains stable and unlikely to tip
over.
§ Consideration of the overall loading of the branch circuit should be given before installing any
equipment in a rack environment.
§ Ensure that a reliable grounding path is maintained in the rack system. This unit is intended for a
grounded connection.
For tabletop mounting, attach the rubber feet to the bottom of the unit. For rack mounting, attach the rack
mount brackets to the sides of the unit at the desired position with the provided screws.
Step #4 - Powering up the AT-NT117 or AT-NT118. Connect power to the AT-NT117 or AT-NT118 from
an appropriate power source. The AT-NT117 uses AC power. Turn on the power switch located on top of
the AC inlet. Verify that the PWR LED is illuminated.
Allied Telesyn International Corporation 1 613-50256-00 Rev A
Step #5 - Making the ADSL connection. Plug the ADSL cable into the ADSL RJ-21 Connector on the
AT-NT117 or AT-NT118. Verify the ADSL connection via the LNK LED on the front of the unit; a blinking
LNK LED indicates that traffic is being received from the ADSL line.
Note: The distance of the copper cable between the Mini-DSLAM and the ADSL Modem will affect
the linking of the ADSL connection. If the distance is greater than a particular speed will support,
the units will not link up.
The AT-NT117 or AT-NT118 pinout information is as follows:
DSL Voice
PortTipRingTipRing
12613914
22724015
32834116
42944217
53054318
63164419
73274520
83384621
93494722
10 35 10 48 23
11 36 11 49 24
12 37 12 50 25
Operational Modes
The AT-NT117 and AT-NT118 support both Full Rate and G.lite operational Modes. The tables below
outline the various possible speed settings for both modes.
Full Rate: G.DMT, T1.413 and Alcatel
All require an in-line splitter to be installed both at the customer premise and the Central Office or
wherever the IP DSLAM may be located.
Upstream
(Kbps)
64 128
128 256
256 512
320 768
384 1024
448 1280
512 1536
768 1792
1024 2048
1280 2304
1536 2560
Downstream
(Kbps)
3584
4608
5632
7680
Allied Telesyn International Corporation 2 613-50256-00 Rev A
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