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    s2:12345:respawn:/usr/local/sbin/ppxpd -getty /dev/ttyR0 serverttyR0
    s3:12345:respawn:/usr/local/sbin/ppxpd -getty /dev/ttyR1 serverttyR1
    s4:12345:respawn:/usr/local/sbin/ppxpd -getty /dev/ttyR2 serverttyR2
    s5:12345:respawn:/usr/local/sbin/ppxpd -getty /dev/ttyR3 serverttyR3

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