user manual

NECAmerica Inc. Switchinq Terminals Division
1. DESCRIPTION
2.
3.
This Engineering Technical Information (ETI) Bulletin provides installation instructions for connecting a TA-20 or
.. 5-l 1 Handset Amplifier to a Dterm II telephone (ETE-l-2).
LIMITATIONS
NONE
PARTS REQUIRED
4.
5.
6.
3.1 Dterm II (ETE-l-2).
3.2 TA-20 or S-l 1 Handset Amplifier
3.3 Double sided insulation tape.
REFERENCES
NONE
OPERATION
5.1 Adjust the desired volume level via the rotary switch on the TA-20 or S-l 1 handset amplifier.
PROCEDURE
CONNECTION OF TA-20 or S-l 1
HANDSET AMPLIFIER TO A Dterm II (ETE- 1
-2)
Dterm II
ETI NUMBER: DS-004 DATE: APRIL, 1990
6.1
6.2
6.3
6.4
6.5
NOTE:
6.6
6.7
Disconnect the line and handset cord from the Dterm Telephone.
Place the Dterm II upside down on a clean flat work surface.
Slide the Directory out and place it aside.
Remove the access panel by applying pressure (at the notch of the panel) and slide the access panel out as
shown in Figure 1.
Cut strap 58 on the telephone PC8 as shown in Figures 2 and 3 (Revision A), and Figures 4 and 5 (Revision B
or higher). (Strap 58 is visible from the access panel window.)
If the revision for the ETE-1-2 telephone is A (e.g., 294 A) proceed to step 6.6 (TA-20) or 6.7 (S-l 1)
If the revision for the ETE-1-2 telephone is B or higher proceed to step 6.8 or 6.9
The revision level of an ETE-l-2 telephone can be determined from the label on the bottom housing of the
telephone. Example: If the Lot No. on the label is 295A, the revision level of that particular telephone is A.
For ETE-l-2 Revision A. Connect the leads from the TA-20 Handset Am.plifier to the spade lug connectors
on the ETE-l-2 PCB. Refer to Table - 1 and Figure 2. Needlenose pliers may be used to push spade lugs into
their receptacles.
For ETE-1-2 Revision A. Connect the leads from the S-l 1 Handset Amplifier to the spade lug connectors on
the ETE-l-2 PCB. Refer to Table - 2 and Figure 3. Needlenose pliers may be used to push spade lugs into
their receptacles.
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