1835-065-N-1-21
15
1.5 Memory Chip Replacement
The 1830 entry system is shipped with the memory chip already installed in the unit. However, if you need to
replace the memory chip in the NEW 1830 entry system or replace the memory chip in an OLDER 1830, follow the instructions
below.
CAUTION
NC
NO
NO
RING
NC C
ON
SPK
VOL
FEED
BACK
RS 232
ELEVATOR
12345 67891011121314
1
2
3
MIC
VOL
OFF
KEYPAD
321
321
321
MASTER
CODE
16AC16ACBAT1NO1NC1C2RY2CAZIMC
5VDCIMDSPKRCOMMICPSWCGNDPHONE
TONE ON
TONE OFF
Note: Be sure that the
memory chip is seated
correctly in the chip holder.
ACT LED Note: LED will flash
when 1830 is programming or
accessing memory chip data.
Remove OLD memory
chip and discard it
Install NEW
memory chip
P/N 1830-404
(DO NOT use P/N 1830-403)
Release
Old Chip
Locked
ACT
New
Arrow MUST be
pointing UP!
Chip Holder
Chip Holder
DO NOT install the memory chip with power to the telephone entry system turned ON. Attempting to install the memory
chip with power on will irrevocably damage the chip. The memory chip is a static sensitive component. Discharge any static
electricity from your hands by touching a proper ground device before touching the control board. Handle the memory chip
with care, the pins can bend easily.
DO NOT install the memory chip UPSIDE-DOWN (Arrow MUST point UP). Installing chip upside-down will cause permanent
damage to the chip.
1833, 1835, 1837 Circuit Board
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