ABB Relion 670 series - Case from the rear side

19.1.2 Case from the rear side
Table 684: Designations for 1/2 x 19” casing with 1 TRM slot
1MRK002801-AC-2-670-1.2-PG V1 EN
Module Rear Positions
PSM X11
BIM, BOM, SOM, IOM or
MIM
X31 and X32 etc. to X51
and X52
SLM X301:A, B, C, D
LDCM, IRIG-B or RS485 X302
LDCM or RS485 X303
OEM X311:A, B, C, D
LDCM, RS485 or GTM X312, 313
TRM X401
1MRK505222-UUS C Section 19
IED hardware
1081
Technical reference manual