GE SG300 - Page 33

JP3
JP1
JP4
IM 0048
JP2
SGSU_225-300_S2_RPA-IM0048_02
JB1
JA1
JP1 JP2
JP4
JP3
JA
JB
Fig. 3.9.2-2 Bus connection on terminal units
Terminal units
On the parallel bus PCB “P34 – Bus Interface”, of the first and last units (terminal) of the parallel
system the Jumpers JP1, JP2, JP3 and JP4 MUST BE INSERTED
.
JP2
JP3
JP1
JP4
IM 0048
JB1 JP1
JP4
JP3
JB2
JA1
JA2
JA
JB
JP2
SGSU_225-300_S2_RPA-IM0048_03
Fig. 3.9.2-3 Bus connection on intermediate units
Intermediate units
On the parallel bus PCB “P34 – Bus Interface” of the intermediate units of the parallel system the
Jumpers JP1, JP2, JP3 and JP4 MUST BE REMOVED
.
NOTE !
In a parallel system composed of 2 or more units, only the first and last units (having
1 input JA and JB free) have the Jumper JP1, JP2, JP3 and JP4 inserted on parallel
bus PCB “P34 – Bus Interface” (see Fig. 3.9.2-2).
Modifications reserved Page 33/40
OPM_SGS_ISG_M22_M30_2US_V010.doc Installation Guide SG S er i e s 2 25 & 30 0 UL S2