Tii 3700 User Manual
Tii Equipment

tii 3700
141 Rodeo Drive
OUTDOOR NETWORK INTERFACE
Edgewood, NY 11717
TII P/N: 64009601
Customer Service/Sales 888-844-4720
Rev Z 12/09
INSTALLATION NOTE
1.00 GENERAL
1.01  This installation note provides the description 
and installation steps for the TII 3700 Outdoor 
Network Interface. This product is designed to 
combine station electronics and network interface 
within a single housing. 
1.02 The unit is furnished complete with housing, 
protector module, RJ-11 jack, customer wiring 
bridge(s) for one to three lines and customer 
instructions. 
 
 
2.00 WARRANTY 
2.01 See TII warranty. If this unit fails during the 
warranty period, the factory should be requested to 
authorize return. Return the unit prepaid when 
authorization is received. Units that fail due to abuse 
or normal wear should be discarded. 
 
3.00 DESCRIPTION 
3.01 The TII 3700 Outdoor Network Interface is 
furnished complete and requires no special tools for 
installation or maintenance, except if ordered with 
optional pin-in-head security screw. 
3.02 The unit may be ordered with protection 
modules or less protection modules, and may be 
ordered with customer wiring bridges for one to three 
lines. 
3.03 Molded of a very durable plastic that is 
designed for outdoor use, the TII 3700 is provided 
with two separate side hinged doors. The outer door 
has provision for a padlock with an override feature 
that allows telco access for maintenance. The inner 
door is held closed with a recessed hex head security 
screw , or a pin-in-head screw to prevent unauthorized 
access. 
3.03.1 The base is equipped with cable shields for 
securing incoming drop wire, riser tubes and/or 
customer wire. 
3.04 TII's 3700 Outdoor Network Interface can be 
fitted with numerous types of protector modules (see 
data sheet for TII 3700 Outdoor Network Interface). 
 
4.00 INSTALLATION 
4.01 Remove the unit from the bag and inspect it 
carefully for damage. 
4.02  External mounting ears are provided for 
exterior mounting. Mount the 3700 front cover 
forward and back of the NID flush against the 
mounting wall using the appropriate hardware and 
methods. 
4.03 Alternate Mounting- Open both the outer and 
inner doors. Select the internal mounting holes that 
may match the existing hole pattern, if any, or are 
most appropriate for the mounting surface. Then 
break out the plastic web covering the selected 
mounting holes. 
4.04  Mount the TII 3700 front cover forward and 
back of the NID flush against the mounting wall using 
the appropriate hardware and methods. 
4.05  Install the protector module if one was not 
included. 
4.06  Thread the protector ground wire through the 
appropriate grommet in the base of the unit and 
connect it to the ground stud. 
4.07 Run and connect the ground wire to an 
approved ground making the run as short and straight 
as possible. 
4.08 Thread the drop wire through the same 
grommet and connect it to the tip and ring of the 
gel-filled ports of the protector module. 
4.09 If a second line is being installed at this time, 
repeat 4.08. 
4.10 Secure the incoming drop wire and/or riser 
tube to the cable shield with a tie wrap or clamp. 
4.11 Close the telco door and tighten the security 
screw until it is snug. 
4.12 Feed the station wire through the appropriate 
grommet in the base of the unit and terminate the 
tip and ring on the appropriate connection points of the 
customer wiring bridge for Line 1. 
4.13 Repeat step  4.12 if additional lines are being 
installed. 
4.14  Inspect work for shorts, grounds and broken 
wires. 
4.15 Close and snap secure the customer bridge 
module cover, making certain that it is properly 
seated, then close the outer door and secure it by 
tightening the screw. 
4.16 Perform all customary tests. 
