Meinberg TCR511PEX Manuale Utente

TCR511PEXTechnical InformationOperating Instruction

10Pulse outputsThe module TCR511PEX generates pulses at change of second (PPS) and change ofminute (PPM). The PPS signal is available with TTL (0/+5V)

11The 9 pin D-Sub-connector is wired to the board’s serial port. Pin assignment can beseen from the figure above. This port can not be used as serial

12Putting into operationTo achieve correct operation of the board, the following points must be observed.Installing the TCR511PEX in your ComputerEver

13Input impedanceThe IRIG-specification doesn’t define values for the output impedance of generators orthe input impedance of receivers. This fact led

14Photocoupler inputPulse width modulated (DC Level Shift) codes are insulated by an onboard photocoup-ler. The connection scheme is shown below:The i

15Firmware UpdatesWhenever the on-board software must be upgraded or modified, the new firmware canbe downloaded to the internal flash memory via the

16Technical specification TCR511PEXRECEIVER INPUT: AM-input (BNC-connector):insulated by a transformerimpedance settable 50 Ω, 600 Ω, 5 kΩinput signal

17OUTPUTS: pulse per second (PPS):TTL- and RS-232 levelpositive pulse, pulse duration 200 msecpulse per minute (PPM):TTL levelpositive pulse, pulse du

18Format of the Meinberg Standard Time StringThe Meinberg Standard Time String is a sequence of 32 ASCII characters starting withthe STX (start-of-tex

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Contact InformationMeinberg Funkuhren GmbH & Co. KGLange Wand 9D-31812 Bad PyrmontTelefon: ++49 (0) 52 81 / 9309-0Telefax: ++49 (0) 52 81 / 9309-3

TCR511PEX - E- 250408

Table of ContentsContact Information ... 2Diskette with driver software ...

4Driver software supplied with the board is keeping the computer’s system timesynchronous to the board time. If the diskette delivered with TCR511PEX

5IntroductionThe transmission of coded timing signals began to take on widespread importance inthe early 1950´s. Especially the US missile and space p

6IRIG-Standard format

7AFNOR-Standard format

8Features TCR511PEXThe board TCR511PEX is designed as a „low profile“ board for computers with PCIExpress interface. The data transfer to the computer

9Functional descriptionAfter the received IRIG code has passed a consistency check, the software clock andthe battery backed realtime clock of TCR511P