ABB 500 Series Builder's Manual page 63

Location of the connectors on rear side
for RED 521
7DEOH  &RQQHFWRUV DQG DVVRFLDWHG SULQWHG ERDUG DVVHPEOLHV IRU WKUHHSKDVH
5(' WHUPLQDO
0RGXOH
Analog input module 1 (CT1 to CT3)
Analog input module 2 (CT4 to CT6)*
Optical communication module
Binary input module (general inputs and
zone selection inputs for CT1 to CT6)
Empty (not used)
Empty (not used)
Binary output module (trip outputs, open CT
outputs etc.)
DC/DC converter module
*) only available for 6-bay version
7DEOH  &RQQHFWRUV DQG DVVRFLDWHG SULQWHG ERDUG DVVHPEOLHV IRU RQHSKDVH
5('  WHUPLQDO
0RGXOH
Analog input module 1(CT1 to CT9)
Analog input module 2 (CT10 to CT18)*
Optical communication module
Binary input module (general inputs and
zone selection inputs for CT1 and CT2)
Binary input module (zone selection inputs
for CT3 to CT10)
Binary input module *
(zone selection inputs for CT11 to CT18)
Binary output module (ZA and ZB trip out-
puts, open CT outputs etc.)
DC/DC converter module
* only available for 18-bay version
7HUPLQDO FRQQHFWRUV
/RFDWLRQ 5HDU
P1 X11
P5 X51
P8 X81-X84
P9 X91/X92
P10 X101/X102
P11 X111/X112
P12 X121/X122
P14 X141
/RFDWLRQ 5HDU
P1 X11
P5 X51
P8 X81-X84
P9 X91/X92
P10 X101/X102
P11 X111/X112
P12 X121/X122
P14 X141
&KDSWHU 
57