Tii 91 User Manual

P/N 92215701 • Rev C• 4/1/2008

Warranty: If this unit fails during the warranty period, contact tii customer service to authorize return. Unit may be returned prepaid.

Model tii 91 Series

Expansion Modules

Installation Note

Description

NOTE: RJ-11 PLUG IS
NOT REQUIRED FOR
NORMAL OPERATION.

Installation

1. The tii 91 Series Expansion Modules consist
of a single station protector and a customer
bridge module required to upgrade or expand
subscriber lines within a tii Network Interface
Device (NID). They are available with either
traditional binding post terminations or gel­sealed IDC terminations.

Features

Installing the Protector

1. The Angle Driver (Sealed IDC Protector) is
delivered with a universal grounding and
mounting tab (See Figure 1). If installing a
new module into a NID, break away the
unwanted ground tab from the module using a
pair of pliers and discard (See Figure 3).
Binding post protectors do not require this
step. Simply Install the module on desired
NID ground post and secure with washer and
nut.

Figure 1

Figure 2

Wiring

Angle Driver Sealed IDC Protector

1. The two upper ports of the Angle Driver are
intended to terminate subscriber (customer)
wires. Telco drop (feeder) wires must be
terminated in the two lower ports of the Angle
Driver.

2. Upper Port Subscriber Connections
(See Figure 4)

Subscriber terminations are already made in
the factory. If it is necessary to re-terminate a
subscriber wire, do so as follows:

2a. Do not strip wire insulation. Make certain
wire ends are cut flush with insulation.

Figure 3

2b. Unscrew Angle Driver screw to the full
upright position.

2c. Fully insert the two subscriber wires into
their respective tip and ring (color-coded)
ports.

2d. Dress the wires through the strain relief
slots to hold them in place (See Figure 4).

Figure 4

3. Lower Port Telco Connections
(See Figure 5)

3a. Do not strip wire insulation. Make certain
wire ends are cut flush with insulation.

3b. Unscrew Angle Driver screw to full upright
position.

3c. Fully insert the two feeder (telco) wires into
their respective tip and ring (color-coded)
ports.

3d. While holding the two telco wires in place
tighten Drive Screw to full down position.

Figure 5

4. Binding Post Protector Wiring
4a. Strip the insulation from service drop wire

Tip (Green) approx. ½ inch. Loosen the lower
nut of one of the binding posts and wrap the
exposed conductor around the stud. Wire
should be between the two washers of the
lower nut. Tighten the nut to secure the
connection and repeat for the Ring (Red) wire.

4b. Wiring to the customer bridge modules
(from protector) is accomplished in the same
manner with the exception that the
connections are made between the two
washers of the upper nut for the station
protector.

Installation

Installing the Customer Bridge Module

1. Hold the CBM module with the locking hinge
facing you. (See Figure 2)

2. Insert the CBM module locking hinge into the
Network Interface Device (NID) locking tab
(See Figure 7).

3. Pull back NID retainer (See Figure 7) and slip
CBM front locating fingers (See Figure 6) into
NID locating slot.

Figure 6

Wiring

CBM Wiring (Sealed IDC Connections)

1. Four independent telephone pairs can be
connected to a single CBM module. Customer
has the option of installing a #10 Master lock
in the customer lock hasp (See Figure 2).

2. When terminating the first pair to an IDC
connection, always begin with the bottom
terminating rockers (See Figure 2).

3. When terminating to an IDC connection, do
not strip wire insulation from wires.

CAUTION: TO REDUCE THE RISK OF
PERSONAL INJURY, INSERT A RJ-11 PLUG
INTO THE CUSTOMER TEST JACK PRIOR TO

MAKING ANY WIRING CONNECTIONS.

4. Dress terminating wires (to protector) over NID
divider (See Figure 7).

5. Insert and terminate TIP (GRN) & RING (RED)
wires into sealed IDC station protector (See
protector installation note for further details).

6. Open customer security cover on CBM
module.

7. Lift all CBM rockers to the open position as
shown (See Figure 2).

8. Dress wires around customer security cover.

9. Hold the customer telephone wires between

thumb and index finger (approx. 1/8”

separation between wires).

NOTE: Wires should be aligned to the corresponding

holes. Green wire to the “T” (GRN) labeled wire guide
and the Red wire to the “R” (RED) labeled wire guide.

10. Insert wires into wire guides at the same time
until they bottom out.

11. While holding wires in wire guides, terminate
rocker with thumb (lower rocker all the way).