Comtech EF Data CDM-500 Specifications Page 38
- Page / 88
- Table of contents
- BOOKMARKS
Rated. / 5. Based on customer reviews
CDM-500 Closed Network Satellite Modem Front Panel Operation
Rev. 1.3 6–9
NOTE: If BPSK is selected, only Rate 1/2 is permitted. A warning screen will be
displayed if this sub-branch is entered when in BPSK mode.
6.5.16 (CONFIG, RX) ACQ (Acquisition sweep range)
EDIT RX ACQ SWEEP RANGE:
+/- 25 kHz (PRESS ENTER)
Edit the acquisition sweep range of the demodulator by selecting the digit to be edited,
using the LEFT/RIGHT arrow keys). Change the value of the digit using the UP/DOWN
arrow keys. Press Enter.
The range varies from +/- 1 kHz to +/- 30 kHz. The value entered here determines the
amount of frequency uncertainty the demodulator will sweep over in order to find and
lock to an incoming carrier. When operating at low bit rates, large values of sweep range
(compared to the data rate) will cause excessively long acquisition times. For example:
selecting +/- 30 kHz with a data rate of 2.4 kbps, BPSK, will result in an average
acquisition time of around 5 minutes.
6.5.17 (CONFIG, RX) DESCRAM (Descrambler)
SELECT RX DE-SCRAMBLING:
ON OFF (PRESS ENTER)
Select ON or OFF, using the LEFT/RIGHT arrow keys, then press Enter. When
Transparent mode is selected, a V.35 descrambler is used. In Framed mode, a frame-
synchronised descrambler is used. It is recommended that scrambling/descrambling be
used at all times.
6.5.18 (CONFIG, RX) CLK (Clocking)
SELECT RX CLOCKING MODE:
BUFFER ON OFF(PRESS ENT)
Select OFF or ON, using the LEFT/RIGHT arrow keys, then press Enter. When OFF is
selected, the Plesiochronous/Doppler buffer is disabled. The receive clock will then be
derived from the satellite signal, and will therefore be subject to clock offsets relative to
the local transmit clock, and a small amount (< 5%) clock jitter, due to the demodulation
bit-timing recovery process at low values of Eb/No.
When ON is selected, the Plesiochronous/Doppler buffer is enabled. The input to the
buffer will be the signal from the satellite, with any clock offsets and jitter. The output
rom the buffer will be derived from the local TRANSMIT clock. In this way, the receive
data will be perfectly synchronous with this local clock. The CDM-500 can be operated
with independent transmit receive and transmit data rates. Even in this configuration,
where RX data rate <> TX data rate, the output clock for the buffer will be phase locked
to the transmit clock. When the buffer is enabled, the size of the buffer may be selected
using the menu below:
- CDM-500 1
- Customer Support 4
- Table of Contents 6
- Rev. 1.3 iii 8
- Rev. 1.3 v 10
- Figures 11
- About this Manual 12
- Conventions and References 12
- Cautions and Warnings 12
- Metric Conversion 12
- BEFORE INSTALLATION AND USE 13
- Installation 14
- Warranty Policy 15
- Limitations of Warranty 15
- Exclusive Remedies 15
- Disclaimer 15
- Chapter 1 16
- INTRODUCTION 16
- 1–2 Rev. 1.3 17
- Chapter 2 18
- INSTALLATION 18
- 2.2 Configuration 19
- 2.3 Select Internal IF Loop 19
- 2.4 Connect External Cables 19
- Chapter 3 20
- FUNCTION 20
- 3–2 Rev. 1.3 21
- Chapter 4 22
- PHYSICAL DESCRIPTION 22
- 4.2 Rear Panel 24
- 4–4 Rev. 1.3 25
- Chapter 5 26
- CONNECTOR PINOUTS 26
- 5–4 Rev. 1.3 29
- Chapter 6 30
- FRONT PANEL OPERATION 30
- 6.2 Menu Trees 32
- 6.3 OPENING SCREEN 33
- 6.4 SELECT 33
- 6.5 CONFIG: 34
- 6.5.6 (CONFIG, TX) ON/OFF 35
- Rev. 1.3 6–7 36
- 6–8 Rev. 1.3 37
- Rev. 1.3 6–9 38
- 6–10 Rev. 1.3 39
- Rev. 1.3 6–11 40
- 6.5.30 (CONFIG, LOCAL) 41
- 6.5.31 (CONFIG, REMOTE) 41
- Rev. 1.3 6–13 42
- 6.5.37 (CONFIG, MASK) AGC 43
- 6.5.38 (CONFIG, MASK) Eb/No 43
- Rev. 1.3 6–15 44
- 6.6 TEST 45
- 6.7 INFO (Information) 46
- 6–18 Rev. 1.3 47
- Rev. 1.3 6–19 48
- 6.8 MONIT (Monitor) 49
- 6.8.1 (MONIT) ALARMS 49
- 6.8.5 (MONIT) STORED EVENTS 50
- 6.8.6 (MON, EVENTS) VIEW 50
- 6–22 Rev. 1.3 51
- 6.9 STORE/LD (Store/Load) 52
- 6.9.1 (STORE/LD) STORE 52
- 6.9.2 (STO/LD) LOAD 52
- 6–24 Rev. 1.3 53
- 6.10 UTIL (Utility) 54
- 6–26 Rev. 1.3 55
- Chapter 7 56
- CLOCKING 56
- 7–2 Rev. 1.3 57
- Chapter 8 58
- EDMAC CHANNEL 58
- 8.2 M&C Connection 59
- 8.3 Setup Summary 60
- 8–4 Rev. 1.3 61
- Appendix A 62
- SUMMARY OF SPECIFICATIONS 62
- A.2 Demodulator 63
- A.3 Data Interfaces 64
- A.4 Miscellaneous 64
- A.5 Approvals 64
- A–4 Rev. 1.3 65
- Appendix B 66
- REMOTE CONTROL 66
- B.3 EIA-232 67
- B.4 Basic Protocol 67
- B.5 Packet Structure 68
- B.5.1 Start Of Packet 68
- B.5.2 Address 68
- B.5.3 Instruction Code 69
- B.5.5 Message Arguments 70
- B.5.6 End Of Packet 70
- B–6 Rev. 1.3 71
- B–18 Rev. 1.3 83
- Rev. 1.3 i–1 84
- METRIC CONVERSIONS 86
- Units of Length 86
- Temperature Conversions 86
- Units of Weight 86
Related products and manuals for Networking Comtech EF Data CDM-500
Sandusky EZR2614W4 manuals
Owner’s manuals and user’s guides for Unknown Sandusky EZR2614W4.
We providing 1 pdf manuals Sandusky EZR2614W4 for download free by document types: Instruction Manual
Sandusky EZR2614W4 Instruction Manual (1 pages)
Brand: Sandusky | Category: No info | Size: 0.10 MB |
Table of contents
More products and manuals for Unknown Sandusky
| Models | Document Type |
|---|---|
| KDLB151548-30 |
Instruction Manual
Sandusky KDLB151548-30 Instructions / Assembly,
5 pages
|
| FW4824-3 |
Instruction Manual
Sandusky FW4824-3 Instructions / Assembly,
2 pages
|
| FSC3012 |
Instruction Manual
Sandusky FSC3012 Instructions / Assembly,
2 pages
|
| FCW3517 |
Instruction Manual
Sandusky FCW3517 Instructions / Assembly,
1 pages
|
| CW4622 |
Instruction Manual
Sandusky CW4622 Instructions / Assembly,
2 pages
|
| FW4824 |
Instruction Manual
Sandusky FW4824 Instructions / Assembly,
2 pages
|
| AT7236-PU |
Instruction Manual
Sandusky AT7236-PU Instructions / Assembly,
2 pages
|
| AT4020-BW |
Instruction Manual
Sandusky AT4020-BW Instructions / Assembly,
2 pages
|
| PW3720 |
Instruction Manual
Sandusky PW3720 Instructions / Assembly,
1 pages
|
| WLAP2016 |
Instruction Manual
Sandusky WLAP2016 Instructions / Assembly,
4 pages
|
| MGR3511771 |
Instruction Manual
Sandusky MGR3511771 Instructions / Assembly,
1 pages
|
| FCW3622 |
Instruction Manual
Sandusky FCW3622 Instructions / Assembly,
1 pages
|
| FW3820 |
Instruction Manual
Sandusky FW3820 Instructions / Assembly,
2 pages
|
| TW3820 |
Instruction Manual
Sandusky TW3820 Instructions / Assembly,
2 pages
|
| FCW5424 |
Instruction Manual
Sandusky FCW5424 Instructions / Assembly,
4 pages
|
| CW4824 |
Instruction Manual
Sandusky CW4824 Instructions / Assembly,
2 pages
|
| BQ10351372-05 |
Instruction Manual
Sandusky BQ10351372-05 Instructions / Assembly,
2 pages
|
| KDCL7236/6-05 |
Instruction Manual
Sandusky KDCL7236/6-05 Instructions / Assembly,
2 pages
|
| MWFC241430 |
Instruction Manual
Sandusky MWFC241430 Instructions / Assembly,
1 pages
|
© 2020, manymanuals.com. All rights reserved. | 0.031 s |
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comments to this Manuals