參數(shù)資料
型號: 1775
廠商: Aeroflex Inc.
英文描述: Universal MacAir/1553 Dumb RTU Hybrid PRELIMINARY DATA SHEET
中文描述: 通用MacAir/1553啞RTU的雜交初步的數(shù)據(jù)資料
文件頁數(shù): 1/14頁
文件大?。?/td> 184K
代理商: 1775
SCDCT1775 Rev B
DESCRIPTION
The CT1775 Universal MACAIR/1553 Dumb Remote Terminal Unit (RTU) consists of a transceiver, and encoder/decoder, control
logic, dual rank I/O registers and internal clock oscillator packaged in a 1.6" x 1.9" hermetic hybrid. It provides all the functions
required to interface between a MACAIR (sinusodial) or MIL-STD-1553 (Trapezoidal) serial MUX data bus and a subsystem parallel
3-state data highway. Utilizing several ASIC ICs, the CT1775 provides sufficient handshaking, control and data lines to permit
versatile operation as a remote terminal, a bus controller or a bus monitor, in either single or dual redundant data bus configurations.
As a transmitter, the CT1775 accepts 8 bit or 16 bit parallel date from the subsystem, and outputs serial Manchester II coded
Command, Status or Data words, under subsystem control. As a receiver, it accepts serial MIL-STD-1553 or MACAIR transmissions
and transfers all Command, Status and Data words to the 8 bit or 16 bit data highway, under subsystem control. The CT1775 also
provides flags to the subsystem when Broadcast, Mode Code, and Own Address (with parity) commands are decoded.
The CT1775 contains a terminal fail-safe timeout circuit which flags message lengths exceeding 768μs, and terminates serial data
transmission. Wraparound selftest is initiated by a control line which causes the encoder serial output to be connected to the decoder
input. The CT1775 provides a serial output of decoded words, thus allowing Command Word look ahead, for the fastest terminal
response.
FEATURES
CT1775 Replaces DDC BUS-65201
Includes:
- Universal Transceiver
- Encoder/decoder
- Dual Rank I/O Registers
- Fail-safe Timer
- Clock Oscillator
Simple Controls for Single or Dual Redundant Data Bus Configurations
Provides Flags for:
- Own Address (With Parity)
- Mode Code
- Broadcast
- Time Out
- Valid Word
- Sync Type
16 Bit or 8 Bit 3-State
- Parallel I/O and Serial Out
Wraparound Built-In Test
MIL-PRF-38534 Compliant Circuits Available
Packaging – Hermetic Metal
- 68 Pin, 1.85" x 1.6" x .19" Plug-In Type Package
CT1775
Universal MacAir/1553 Dumb RTU Hybrid
PRELIMINARY DATA SHEET
www.aeroflex.com/Avionics
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