Southco R4-EM - 9 Series Electronic Rotary Latch

Southco’s R4-EM 9 Series Electronic Rotary Latch delivers next generation electronic latching through microprocessor controlled actuation, providing highly intelligent, reliable electronic access. The internal microprocessor allows expanded intelligence with integrated door and lock status sensing for complete security monitoring. Lightweight extended housing offers increased tamper resistance, while an integrated connector and snap-on manual over-ride bracket simplify installation. Additionally, the 9 Series offers an optional open/close detent feature to prevent unintended door release.

Accessories producer:

Southco

Product page:

R4-EM - 9 Series Electronic Rotary Latch

Tested with	Firmware	Result
HWg-SH4	1.2.2 and later	OK
HWg-SH4e	1.0.2 and later	OK
HWg-SH4s	1.0.0 and later	OK

Pinout

1	Power GND = Power Out GND pin
2	Power = Power Out +U pin
3	Control Signal = Rele NO pin - Rele COM connect to Power Out +U pin
4	Locked/Un-Locked Status = IN2 pin
5	Not Connected
6	Door Closed/Open Status = IN3 pin

Connections

HWg-SH4x	Lock
GND	Door Contact
IN1	Door Contact
GND
IN2	Locked/Un-Locked Status
GND
IN3	Door Closed/Open Status
NC
COM	Connect to +U
NO	Control Signal
GND	Power GND
+U	Power (Red)
*Options