US ARMY SIGNAL CENTER AND FORT GORDON
Fort Gordon, Georgia 30905-5200
LESSON PLAN
| TITLE: | Install Tactical Analog Telephones TA 838/TT and TA 341/TT, employing TD-1233/TT and TD-1234/TT Multiplexers | |
| LEARNING | ||
| OBJECTIVES: | Action: | The student will identify correct procedures to set up, install, and operate tactical analog telephones using multiplexer TD-1233/TT and multiplexer-combiner TD-1234/TT. |
| Conditions: | Given TM 11-5805-384-12, TM 11-5805-650-12, TM 11-5805-706-12, TM 11-5805-707-12, Information Sheet 621-31L10/C01-LP5-IS/TATS, Information Booklet 621-31L10/C01-LP1-IB/TATS. | |
| Standard: | The standard is met when the student can identify correct set up, Installation and operation procedures for the tactical telephones TA 838/TT and TA 341/TT employing multiplexers TD-1233/TT and TD-1234/TT in 1 out of 2 attempts within 30 minutes. | |
| SAFETY | ||
| CONSIDERATIONS: | None | |
| RISK | ||
| ASSESSMENT: | Low | |
| RESOURCE | ||
| NEEDS/ | ||
| REFERENCES: | TM 11-5805-384-12, TM 11-5805-650-12, TM 11-5805-703-14, TM 11-5805-706-12, TM 11-5805-707-12, Information Sheet 621-31L10/C01-LP5-IS/TATS, Information Booklet 621-31L10/C01-LP1-IB/TATS. | |
| METHODS OF | ||
| INSTRUCTION: | Conference, Demonstration | |
| TIME: | 2 Hours | |
| NOTES TO INSTRUCTOR: | 1. Ensure that classroom is available and properly set up and that all equipment and materials are available and in working order: | |
| a. TD-1233/TT remote loop group multiplexing (RLGM), (demonstration purposes). | ||
| b. TD-1234/TT multiplexer combiner (RMC), (demonstration purposes). | ||
| c. TA 838/TT analog telephone, (demonstration purposes). | ||
| d. TA 341/TT analog telephone, (demonstration purposes). | ||
| e. WF-16 telephone cable/U, (demonstration purposes. | ||
| 2. Ensure that enough TMs are available. | ||
| 3. Stress safety precautions throughout the class. | ||
| 4. Inform the student about the switching facility installation on TA-341()/TT and TA-838/TT (Refer to handout). | ||
| 5. Explain to students how to use technical manuals; refer to pages as necessary to explain various procedures. | ||
621-31L10/C01-LP5/TATS DEPT APPROVED: Albert C. McTier DATE: 12/04/98
REVIEWED:________DATE:_____
This document supersedes 621-31L10/D01-LP1/96, dated 10 Apr. 96.
INTRODUCTION:
Elapsed
Time
1. During preceding lessons you have learned how to install
the multiplexers, apply power, perform a pre-operational
test, install the Test Set TS 3647/G and use the test set
as an Order Wire to establish contact with the operator
at the distant end.
2. During the next 2 hours, we are going to discuss and practice
the installation of tactical analog telephones using TD-1233/TT
and TD-1234/TT multiplexers.
3. At the end of this period of instruction, you will be able
to install tactical analog telephones using TD-1233/TT and
TD-1234/TT multiplexers in 1 out of 2 attempts within
30 minutes.
5M
BODY:
1. TA-341()/TT. The TA 341/TT is a tactical analog telephone.
a. Technical characteristics.
(1) Voltage requirements.
(a) Four BA-42s or BA-3042/Us.
(b) 4.4 to 6.4 VDC.
(2) Frequency range - 300 to 3500 Hz.
(3) Operating modes.
(a) Point-to-point.
(b) DC supervision local battery.
(c) AC supervision local battery.
(d) DC supervision common battery.
(e) AC supervision common battery.
b. Operator controls and indicators.
(1) LOCAL BATTERY/COMMON switch.
(a) LB.
(b) DC/CB.
(c) AC/CB.
(2) RINGER VOLUME control.
(3) MODE SELECTOR switch.
(a) DC supervision.
(b) Point-to-point.
(c) AC supervision.
(4) Handset.
(5) Retaining strap.
(6) VISUAL RING indicator.
(7) Hook switch.
(8) Key sender.
c. Installation of batteries.
d. Pre-installation checks.
(1) Set LB/CB switch to LB position.
(2) Set MODE SELECTOR switch to AC super-vision.
(3) Handset-little or no sidetone can be heard from
receiver.
(4) Key sender - little or no sidetone can be heard
from receiver.
(5) Set MODE SELECTOR switch to point-to-point.
(6) Handset - A tone should be heard.
(7) Press each key sender - Tone should be lower than
sidetone.
e. Installation for point-to-point operation.
(1) Connect wire line.
(a) Connect green conductors to the R and Y
terminals on connector block of set 1,
and G and B terminals on connector block of
set 2.
(b) Connect brown conductors to the G and B
terminals on connector block of set 1,
and R and Y terminals on connector block of
set 2.
(2) Set MODE SELECTOR switch to point-to-point.
(3) Set LB/CB switch to LB.
NOTE: Instructor will inform student of switching facility
installation.
f. Post installation checks.
(1) Pick up handset of set 1.
(2) Set 2.
(a) Ringer will sound and VISUAL indicator will
light up.
(b) Check that conversation can be clearly heard.
(3) Key sender.
(a) Depress each key of set 1.
(b) Set 2 should receive tone for each key.
(c) Precedence order (FO,F,I, and P.)
(d) Key C.
(e) Key R.
QUESTIONS: What are the voltage requirements of the TA-341()/TT?
(ANS: Four BA-42s or BA-3042/Us, 4.4 to 6.4 VDC.)
In pre-installation checks, what position is the
lB/CB switch in?
(ANS: LB position.)
Describe the wire connection of TA-341()/TT.
(ANS: REF.MP #10 E.)
1H
2. TA-838/TT. The TA 838/TT is a tactical analog telephone.
a. Technical characteristics.
(1) Voltage requirements.
(a) Four BA-42s or BA-3042/Us.
(b) 4.4 to 6.4 VDC.
(2) Frequency range 300 to 3500 Hz.
(3) Modes of operation.
(a) 4-wire operation.
1 C/LB - AC supervision - local battery.
2 AC/CB - AC supervision - common battery.
3 DC/LB - DC supervision - local battery.
4 DC/CB - DC supervision - common battery.
5 PT-PT Point-to-Point operation.
(b) 2-Wire operation.
1 DC/LB - DC supervision - local battery.
2 DC/CB - DC supervision - common battery.
b. Operator controls and indicators.
(1) MODE SELECTOR switch.
(2) VISUAL RING indicator.
(3) RING VOLUME control.
(4) Key set.
(a) Keys 1-0.
(b) Key C.
(c) Key R.
(d) Key FO, F, 1, and P.
(5) Hook switch.
(6) ON/OFF switch for visual ring indicator.
c. Install batteries
d. Pre-installation checks.
(1) Set MODE SELECTOR switch to PT/PT.
(2) Check side-tone.
(a) Speak into handset and listen for side-tone level.
(b) Check side-tone - Tone should be normal.
(3) Depress each key - Tone should be lower than normal.
e. Installation.
(1) Preparation for use.
(a) Vertical mount.
(b) Desk top mount.
(2) Point-to-Point.
(a) Connect wire lines.
1 Connect green conductors to XMT
terminals of set 1 and RCV terminals of
set 2.
2 Connect brown conductors to RCV
terminals of set 1 and XMT terminals of
set 2.
(b) Point-to-Point operation check.
1 Lift handset of set 1 set 2 should ring.
2 Check the speech path in both directions.
3 Repeat procedure in g(1) and g(2),
above, with set 2.
QUESTIONS: How many mode selections can TA-838/TT operate in?
(ANS: Seven modes.)
Can the TA-838/TT be used for point-to-point operation
using a 2-wire circuit?
(ANS: Yes.)
List the pre-installation checks of the TA-838/TT.
(ANS: REF. MP#11 D.)
1H58M
SUMMARY:
During this block of instructions, we have discussed the
technical characteristics, controls, indicators, installation
procedures and operation of two types of tactical analog
telephones. When you arrive at your permanent station of
duties, there are additional types of analog telephones that
you will encounter. The knowledge you have gained from this
block of instruction will help you to successfully accomplish
any mission with this or related equipment.
2H
END
This document supports Task Numbers 113-588-0017, 113-600-1017
and 113-600-1003.
Return to Annex C This page updated 17 April 2000.