5242300 AEROFLEX | Alldatasheet
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Technical content
] SCi Systems, inc. ‘Sci acing Interfaces To All Current Mode Couplers (CMC) (SCI P/N 5242500)
4 Supports Stub Lengths to 40 Meters
2 High Speed Operation (Transmit P, < 39 ns)
4 Transmit Integrity Checking w/ Wrap Around Signal Monitoring
9 Power Control for Coupler w/ Over-Current Protection
4 Manages Coupler Redundant Channel Selection
4 Fault Detection, Isolation and Reporting Capabilities
4 Self-Test Capabilities
41 28 Pin Double-Dip Package
4 MIL-H-38534 Screened
a ead ao en en “ cuo fJ4 co To i ir ae | i Ls ig H = ae : ; an fio LJ v cTHI 7] eae | h oy ao fn a) oo = wae Ja ed Fig 1. $242300 Block Clagrans Fig 2. 6242300 Pin Description 195 1
Manchester to doublet logic encoding ondary redundant transceiver channel. traffic received from the coupler, ing transition of TXHB has occurred. inthe event of an overcurrent condition. Table 1. PIN DESCRIPTION: TSB a TRANSMIT STUB B: The transmit stub pair TSA & TSB. over (his pair to provide power for its operation. to the Current Mode Coupler via TSA & TSB.
27 TRANSMITTER ENABLE: This signal is used by the
‘onto the transmit stub pair.
Table 1. PIN DESCRIPTION (cont.) ter biphase, TTL compatible data which is regeneraed from. BITE (Built In Test) sequence. (See ‘ale: 2). mad used by the Terminal Concroller. NC A NO CONNECT: These pins are not in be connected.
3) Fault Management and BITE. the transmit digital information be translation in less than 30 ns typically. Figure 3. 5242300 SIM Transmit Doublet
are required to satisfy one of two RXN low). Figure 4. 5242300 SIM Receive Doublet
insure the integrity of the data that is of & worst case transmitting coupler. transmitter and log the error for BITE the SIM with much larger amplitudes. transmitting doublets to the coupler, the sufficient amplitude ata distant coupler. met, Distant terminals may be located on the TSACISB signal lines. Table 2. SIM BITE Status Codes
the primary. This is done by transmit- executed by activating the /BTC signal. coupler via the transmit and receive stub one TI (Transmit Interval} to execute. tion, The SIM will automatically man- Table 2.
- Enabled indicates that the SIM will transmit doublets to ihe coupler via the stub cable.
- In yee +15 VG is sent to the coupler via TSA-TSB and -15 VDC is sent
- The transmit function is disablad and no doublets will be generated.
- The SIM completely removes coupler power from the stub cable.
- Dependent on state of TAE, AXE.
- internal status only, nol available at SIM external pin interlace
Table 3. SIM Transmit Function & Coupler Mode Control
The internal status lines are those con- fault management logic when a falling trol signals within the SIM which are edge transition of TXE is seen. A cou- used in conjunction with the external pan is set by the fault management control inputs to determine allowance ogic after it has executed unsuccessful of SIM transmit and coupler power. A sequences of transmission on both SIM fault is declared if an internal channels. transmit error flag has been set by the ABSOLUTE MAXIMUM “Notice: Stresses above those listed under RATINGS* “Absolute Maximum Rating” may cause per- manent damage to the device. This is a stress tating only and functional operation of the Storage Temperature .... -65°C to +150°C those indicated in the operations sections of this Vor on Any Pin specification is mot implied. Exposure to : NOTICE: Specifications contained within the following tables are subject to change D.C CHARACTERISTICS T, = -40°C to +125°C, V,,=5V 15% [Symbol | Parameter | Min [Max | units | Test Conditions Input Low Voltage a a i Input High Voltage (eee | ES Ee Rea Output Low Voltage Has eg Output High Voltage 24 Vv low = -1.3 mA ka Vor: 0.4 low = 100 UA Input Low Current Voc = Max, Vl = 0.4 vDC Input High Current uA [Voc = Max, Wi= 2.7 ee neal carne ee | Output Low Current Sere] er cee ee Output High Current ne EE |. [input Leakage Current es Ee ee Gutput orvOCapactance [Ts [pe PO lo Power Supply Currant ‘Continuows Transmit +5 Worst Case 2MHz Manchester Data ke 415 mA | Does Not Include AS mA_ [CMC Current, 25% 195 E]
100 Typ pray
- Lead identification numbers are for reference only
- Pin material meets solderability requirements of MIL-STD-202E, Method 208C or MIL-STD-883C.
- Package Is Nickel Plated Kovar.
- ‘Qualily Assurance Program - Boeing 01-9000.
Figure 9. SIM PACKAGING OUTLINE
For additional information contact: SCI SYSTEMS P.O. BOX 1000 M/S 240 Huntsville, Alabama 35807 Telephone: (256) 882-4569 FAX: (256) 882-4652 12 185