ABB REL 551 2.3 Series - Page 57

51
Configuring the short range fibre optical
modem
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The other jumper is S3 that has to be in bottom position, as marked in figure 13. If it is
in top position the communication will not work. (In top position the transmit clock is
supposed to be created in the CPU on the MPM module which is not possible). On
JTAG/ISP there shall be no jumpers inserted.
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1 Delivered with version 1.1, 1.2 and 2.0
2 Delivered with version 2.3 or higher
xx00000542vsd
REx5xx
Optical
fibres
21-15X/16X
V.35/36 (15X)
X.21 (16X)
G.703 (16X)
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1
S3
S4
1MRK001471-BA
1MRK001471-DA
JTAG/ISP
1
2