1. TD-1236 Trunk Group Multiplexer
CECOM LAR Tropo Operation Course
TD-1236 Trunk Group Multiplexer
CECOM LAR Course
CONUS Branch
FT McPherson, GA
Header
TD-1236 TGM

2. CECOM LAR Tropo Operation Course
Purpose
Multiplexes up to 4 groups into one super group
Describe use and show location and relationship on Block Diagram FO 8-1
TD-1236 TGM

3. CECOM LAR Tropo Operation Course
Specifications
Dimensions 17.25” X 8.5” X 12” deep
Weight 35.2 LB
Input Power 115 V AC  10%, 47.5 to 440 Hz
Discuss Slide
TD-1236 TGM

4. Input/Output Data Rates
CECOM LAR Tropo Operation Course
Input/Output Data Rates
Input: 72 to 2304 KB/s
Output: 128 to 4608 KB/s
To be discussed in detail later in this presentation.
TD-1236 TGM

5. CECOM LAR Tropo Operation Course
Block Diagram
Point out where Frame Squelch and Resync Cmd inputs.
TD-1236 TGM

6. CECOM LAR Tropo Operation Course
Rules for TGM Group 1
1. Must be equal to, or the highest group rate.
2. Must be TRI-TAC Frame Capable
3. Must be unencrypted
4. SG-1139 IS NOT Tri-Tac Frame Format
Recap Rules
TD-1236 TGM

7. CECOM LAR Tropo Operation Course
Lamps and Switches
See Page 8-4 for Notes
TD-1236 TGM

8. Lamps and Switches Continued
CECOM LAR Tropo Operation Course
Lamps and Switches Continued
See Page 8-7 for notes
TD-1236 TGM

9. CECOM LAR Tropo Operation Course
Fault Indicators
See page 8-6 for Notes
TD-1236 TGM

10. CECOM LAR Tropo Operation Course
Rear Panel
See Page 8-5 for Notes
TD-1236 TGM

11. CECOM LAR Tropo Operation Course
512 KB/s Family
Refer to handbook page 8-8
Discuss 1 Sheet Does All and explain how to read chart.
TD-1236 TGM

12. CECOM LAR Tropo Operation Course
576 KB/s Family
Refer to page 7-9
Discuss 1 Sheet Does All and explain how to read charts.
TD-1236 TGM

13. CECOM LAR Tropo Operation Course
Summary
2nd level multiplexer
Group Rates of KB/s
Output Rates of KB/s
Summarize.
TD-1236 TGM