Tii 831E User Manual

141 Rodeo Drive tii 831E
Edgewood NY 11717 Radio Frequency Interference (RFI) Filter
Customer Service/Sales 888-844-4720 11/09 Rev F

INSTALLATION NOTE

1.00 GENERAL

1.01 This installation note covers the installation
and field testing of the TII 831E Radio
Frequency Interference (RFI) filter.

2.00 WARRANTY

2.01 See TII Warranty. These units are completely
encapsulated and are not repairable. 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.

4.00 INSTALLATION

4.01 Identify the telephone line which needs the
RFI filter.

4.02 Disconnect the subscriber bridge wiring from
the primary protector in the NID.

4.03 Terminate the Red and Green wires from the
input side of the TII 831E to the primary
protector.

4.04 Join the Red wire from the output side of the
TII 831E to the Red wire from the subscriber
bridge module using a suitable means of
joining such as a Scotch Loc. Join the Green
wire from the output side of the TII 831E to
the Green wire from the subscriber bridge
module.

4.05 Connect the Yellow ground wire of the TII
831E to the ground post in the NID.

5.00 TESTING

5.01 Plug the test set into the RJ-11 Jack in the
subscriber bridge module and verify a dial
tone is audible.

5.02 Dress wires properly. Close and secure the
NID cover.

Primary Protector

Subscriber Bridge Module

3.00 DESCRIPTION

3.01 The TII 831E is a broadband low pass filter

831E

which is placed in series with the telephone
circuits inside the Telephone Network
Interface Device (NID).

Scotch Locs

3.02 The filter is designed to eliminate interference
from the AM, FM, CB and TV VHF low bands.

3.03 The RFI Filter circuit has no adjustments and
is essentially transparent to the voice band
0-20KHz.

TII P/N 92207101