DoorKing 1838 - Postal Lock Installation

9
1838-065 Issued 3-19
Version D
16AC16ACBAT1NO1NC1C2RY2CAZIMC
5VDCIMDSPKR
COM
MIC
PSW
CGNDPHONE
Main Terminal
Extended Pawl
Com
NC
1.4 Postal Lock Installation
At some locations, such as gated communities, it will be necessary to provide access to the mail carrier so that they can
deliver the mail. Mail carrier access will be provided by the installation of an Arrow Postal Lock into a DoorKing Postal Lock Box
sold separately (P/N 1402-080). This is the same lock that the Post Office uses for gang mailboxes. These locks are not
available to the public. The installer or the building owner/manager will have to call the Post Office and arrange for the
installation of this lock into the DoorKing Postal Lock Box which is wired to the 1838 main terminal.
Prior to installation of the postal lock, be sure power to the 1838 is turned OFF.
1. Remove the hole plug on the faceplate of the Postal Lock Box.
2. Cut the wire tie wrapped around the switch.
3. Remove the two hex nuts from the postal lock-mounting studs. Mount arrow lock on the studs and secure with the hex nuts.
4. Connect COMMON and the NORMALLY CLOSED switch contacts to main terminals 4 and 6 in the 1838.
When the lock is installed, the pawl of the lock, in the extended position is depressing the switch. When the mail carrier inserts
his key and turns the postal lock, the pawl is withdrawn into the lock and the switch will activate the relay for the programmed
strike time, that has been programmed for this feature.
Factory default settings for the Postal Lock Switch: After the key has been turned, Relay 1 will activate (section 3.3.4) for One
(1) second of strike time (section 3.3.1). The switch input feature (section 3.2.7) is factory set to “activate a relay”.
Postal lock box can be
mounted on a surface or
post mounted. Use
appropriate hardware to
secure box, not included.
Use 18 AWG min.
Nylon Hex
Nuts (Existing)
Mounting studs
located inside
the postal lock box.
Postal Lock
Switch
Pawl
Arrow
Postal Lock
N
C
Com
Com
NC
POSTAL
LOCK BOX
POSTAL
LOCK BOX
Arrow
Lock
Hole
Pl
ug
DoorKing Postal Lock Box
Withdrawn Pawl
Relay Activates
Mounting Holes
Mounting Holes
DoorKing
Postal Lock Box
with door open
Arrow Lock
Mounting
Position
Blue N.C.
White Com