Difference between revisions of "IMACS/800"
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711 - Telecommunications Network Server (TeNSr) Copyright (C) Motorola, 1991-95 | 711 - Telecommunications Network Server (TeNSr) Copyright (C) Motorola, 1991-95 | ||
8F0CF | 8F0CF | ||
| + | |||
| + | = Cards = | ||
| + | |||
| + | == DSM-II == | ||
| + | Digital Simulcast Modem 2. This is the card where the magic for analog happens in. This card time-stamps the audio at input using the 1pps GPS input. At the other end of the network it can buffer it and release it after enough delay which exceeds the worst case transport system delay. Should the delay vary, the card will take care of this using the buffer so long as the delay is less than the buffer size. | ||
| + | |||
| + | This supports broadcast and non-broadcast mode. In the broadcast mode, the SDA is not used, The distribution function is performed in the channel bank at the WAN level. | ||
| + | |||
| + | Non-broadcast mode is the simplest mode to understand. The DSM ports are a 1:1 mapping from the prime site to the remote sites. They are a book-ended audio transport. | ||
| + | |||
| + | Broadcast mode is more complex, only one DSM port is the prime port. The TX audio (from USCI/CSCI) is injected here, and it is digitally replicated to the remote sites. The other DSM ports are slave ports at the prime sites are used for RX audio only. This configuration is the only supported configuration for securenet and eliminates the need for a SDA | ||
| + | |||
| + | Extended Broadcast mode is used when a prime site must scale > 28 analog links. This allows you to subtend additional channel banks at the prime site. | ||
| + | |||
| + | |||
| + | Non-Broadcast mode - =>v1.3 DSM firmware & Rev A DSM hardware | ||
| + | Broadcast Mode - =>v2.4 DSM firmware, Rev C Hardware, CPU v3.43 | ||
| + | Extended Broadcast - =>v2.4 DSM firmware, Rev C Hardware, CPU v4.x | ||
| + | |||
= Files= | = Files= | ||
[[File:IMACS 800 CPU-3 3.44-complete binary image.bin|IMACS 800 CPU-3 3.44-complete binary image]] | [[File:IMACS 800 CPU-3 3.44-complete binary image.bin|IMACS 800 CPU-3 3.44-complete binary image]] | ||
Revision as of 20:00, 30 September 2021
IMACS/800 Channel Bank or TeNSEr
How eeprom has little endian format srec_cat -Output 3.44\ U18\ ST\ M27C4002-byteswap.bin -Binary "3.44 U18 ST M27C4002.bin" -Binary --byte-swap srec_cat -Output 3.44\ U17\ ST\ M27C4002-byteswap.bin -Binary "3.44 U17 ST M27C4002.bin" -Binary --byte-swap The u17 is the first one, thenu18 is above it at 80000. cat 3.44\ U17\ ST\ M27C4002-byteswap.bin >> 3.44-complete.bin cat 3.44\ U18\ ST\ M27C4002-byteswap.bin >> 3.44-complete.bin
Superuser password is "Superuser" From the main screen you can go into "sYs" and then "Reg" to reset the system.
Vendor codes @ 0x24CB0 in U18-byteswap
101 - IMACS 280 - ACCULINK Access Controller Copyright (C) AT&T Paradyne, 1993-95 237 - CX2000 ADC Telecommunications, Inc. 880 - AYNACS 8000 Aydin Network Access Communications System 580 - CP800 DSC Communications Corporation 238 - AURORA Memotec Communications Corporation 152 - interACCESS Internet Communications Corporation 711 - Telecommunications Network Server (TeNSr) Copyright (C) Motorola, 1991-95 8F0CF
Contents
Cards
DSM-II
Digital Simulcast Modem 2. This is the card where the magic for analog happens in. This card time-stamps the audio at input using the 1pps GPS input. At the other end of the network it can buffer it and release it after enough delay which exceeds the worst case transport system delay. Should the delay vary, the card will take care of this using the buffer so long as the delay is less than the buffer size.
This supports broadcast and non-broadcast mode. In the broadcast mode, the SDA is not used, The distribution function is performed in the channel bank at the WAN level.
Non-broadcast mode is the simplest mode to understand. The DSM ports are a 1:1 mapping from the prime site to the remote sites. They are a book-ended audio transport.
Broadcast mode is more complex, only one DSM port is the prime port. The TX audio (from USCI/CSCI) is injected here, and it is digitally replicated to the remote sites. The other DSM ports are slave ports at the prime sites are used for RX audio only. This configuration is the only supported configuration for securenet and eliminates the need for a SDA
Extended Broadcast mode is used when a prime site must scale > 28 analog links. This allows you to subtend additional channel banks at the prime site.
Non-Broadcast mode - =>v1.3 DSM firmware & Rev A DSM hardware Broadcast Mode - =>v2.4 DSM firmware, Rev C Hardware, CPU v3.43 Extended Broadcast - =>v2.4 DSM firmware, Rev C Hardware, CPU v4.x
Files
File:IMACS 800 CPU-3 3.44-complete binary image.bin
File:IMACS 800 CPU-3 3.44 U17 ST M27C4002.bin
File:IMACS 800 CPU-3 3.44 U18 ST M27C4002.bin
File:IMACS 800 CPU-3 3.44 U28 Voice AM27C1024.bin
Links
https://dzsi.com/channel-bank/
http://www.psitec.com/html/imacs-reference.html#ImacsManuals
http://www.cabling-design.com/references/pinouts/EIA-TIA-561.shtml
