Rev. 1.7 © Openpath 2023 6
SELECTING A BACKUP BATTERY
While not required, Openpath recommends having a backup battery in case of power
outages. The size of batterydepends on your setup and how long you want to power
the system.
Table 1 Power requirements (24V)
SDC .3A
Smart Reader (2) 0.25A
Locking hardware (while engaged) 0.25A--0.5A
Assuming an external 24V power supply, an SDC configured with two Openpath
Readers and locking hardware uses about 1.1 Amps. To keep the system running for 3
hours with all entries engaged, you need 1.1A x 3 hours = 3.3 AH, so two 12V 4AH sealed
lead acid (SLA) or gel cell batteries in series.
MOUNTING INSTRUCTIONS
The SDC can be mounted a few different ways: on a single or double gang box or on
drywall.
INSTALL ONA STANDARD US 1-GANGE BOX
1. Use two 6-32 screws (A) to attach backplate (B) to gang box.
Recommended:Use the provided drywall screws (C) and anchors (not shown)
on drywall for added stability.
2. Snap on main housing (D) to backplate (B).
3. On the right side of the main housing (D), ensure that the two edge clips fit into
their respective notches on the backplate (B).
4. Press firmly on the main housing (D) to snap into place.
5. Partially unscrew the pre-installed M4 set screw (E) to secure main housing (D)
to backplate (B).
6. Use the cable slot (F) to hold cables while wiring; see STANDARD WIRING
CONFIGURATION on page10.
7. Snap on front cover (G).
