+20 V 70 mA, –20 V 80 mA Temperature range 5–50°C, ambient temperature Humidity 0–95% RH, non-condensing Dimensions 100x100 mm Weight 0.1 kg Mounting To be mounted in rack RV-01, takes one card slot. NOTE! Max 9 MA-49 with one power supply (PS-02) in rack RV-01. 6049-2001...
Switch settings The MA-49 can through different switch settings be adapted to a variety of running conditions. Selection of signal activating 1 – 6 Transmitter controlled controlled activated by 1 2 3 4 5 6 1 – 6 Always high...
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Look right for a section of rack RV-01 with one MA-49 mounted. Terminal connection to a 25-position D-sub (female) connector on MA-49. Line connection to a 5-position detachable screw-terminal, which is mounted on the male connector located at the rear of RV-01.
Line connection 4-wire 2-wire RS-422 RS-485 MA-49 MA-49 equipment equipment Twisted pairs A’ Transmitter Receiver B’ Twisted pairs Transmitter/ Transmitter/ Transmitter A’ A/A’ Receiver A/A’ Receiver Receiver B’ B/B’ B/B’ Shield Shield 1) If shielded cable is used, connect the shield only at one end to avoid ground currents.
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See diagrams for details of how this is done with RS-485 (2 wire) and RS-422 (4 wire). On 4 wire systems when the MA-49 is on a slave system, it’s transmitter is linked to the same bus as all the other slave transmitters. A status signal (RTS or DTR) is used to control the MA-49’s transmitter, to ensure only one slave is active on the bus at one...
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OWN COMMENTS ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................6049-2001...
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