Figure 2: Hardware module slot overview of the REX640 relay
1
Slot markings in enclosure (top and bottom)
2 Ready LED
Table 3: Module description
Module Description
ARC1001 4 × ARC sensor inputs (lense, loop or mixed)
COM1001 1 × RJ-45 (LHMI port) + 3 × RJ-45 + 1 × LD-SFP
1
COM1002 1 × RJ-45 (LHMI port) + 2 × LC + 1 × RJ-45 + 1 × LD-SFP
COM1003 1 × RJ-45 (LHMI port) + 3 × LC + 1 × LD-SFP
COM1004 1 × RJ-45 (LHMI port) + 2 × RJ-45 + 1 × LD-SFP + 1 × RS-485/IRIG-B + 1 × FO
UART
Table continues on the next page
1
Line distance/line differential protection communication + binary signal transfer, optical multi-
mode or single-mode LC small form-factor pluggable transceiver (SFP)
REX640 overview 1MRS759142 F
44 REX640
Technical Manual