PRESCO 3 Series User manual

PAC1
Single Door Access Controller
“Series 3”
INSTALLATION MANUAL

i
TABLE OF CONTENTS PAGE
Introduction.....................................................................1
Features...........................................................................1
Changes From Series 2..................................................2
Specifications .................................................................2
Terminal Descriptions....................................................3
Programmable Features Description ...........................5
Automatic Relock Function..........................................5
Door Open Too Long...................................................5
Door Forced Open.......................................................5
One Minute Lockout ....................................................6
High Security Mode.....................................................6
Installation.......................................................................7
VR43 (and VR62) Keypad Wiring................................7
PSK16 (and PRE) Keypad Wiring...............................8
PSC16 and PSR16 Keypad & Prox Reader Wiring ....8
PSE-IL Keypad Wiring.................................................9
PRO2410 Proximity Reader Wiring.............................9
D.C. Lock...................................................................10
A.C. Lock...................................................................10
Egress Input Switch...................................................10
Door Input Switch......................................................10
Programming ................................................................11
Keypad Responses ...................................................11

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Using a Presco Keypad without Key...................12
Delete All User Codes...............................................12
Reset To Factory Defaults.........................................12
Basic Set Up Sequence ............................................13
Automatic Relock. Memory 80 .................................14
EGRESS Switch Type. Memory 81..........................14
ELC Relay Type. Memory 82 ...................................15
ELC Operating Time. Memory 83.............................15
Door Input Enable. Memory 84 ................................15
Door Open Too Long Timer. Memory 85 .................16
Door Forced Open Detection. Memory 86 ...............16
One Minute Lockout. Memory 87.............................16
High Security Mode. Memory 88..............................17
High Security Mode Timing. Memory 89..................17
Momentary Codes Turn Off Toggle. Memory 91......18
Series 2 Compatibility. Memory 99...........................18
Installation Programming Summary...........................19
Warranty........................................................................20

1
INTRODUCTION
The Presco Digital Door Access Decoder utilises the latest
microprocessor technology to operate most electric door
locking devices on the market. The decoder together with an
encoder (Presco keypad (PSK16, VR43, VR62, PTKR or
PSE) or a Presco Interface Module (PIM) with a Clock & Data
(magnetic card format) or Wiegand output reader) offers
access control to restricted areas.
FEATURES
•Split system for maximum security (Encoder & Decoder).
•Door Forced Open detection.
•Door Open Too Long (DOTL) function.
•EGRESS function.
•Automatic door relock function.
•Easy on site programming using any Presco keypad.
•600 client programmable users.
•Heavy Duty 5 Amp. relay contacts for lock control.
•Can operate Fail Safe or Fail Secure electronic locking
mechanisms.
•1 Amp Normally Open DOTL Alarm relay output.
•10 year non volatile EEPROM memory.
•36 month (3 year) manufacturer’s warranty.
•Designed and manufactured in Australia.

2
CHANGES FROM SERIES 2
1. The PAC1 now supports 600 user codes.
2. Egress input can now be programmed as edge triggered
(momentary only) so that keeping the Egress input
triggered will not keep the door open permanently.
3. User code programming has been simplified (refer to the
supplied User Code Programming Manual).
4. Bulk adding of users is now supported.
5. Can be set to Series 2 compatible mode for use with
existing PACDL installations.
6. Two Codes Mode is now called High Security Mode.
SPECIFICATIONS
Voltage:
(absolute min-max)1
11-30 Volts D.C.
14-28 Volts A.C.
Current:
120 mA D.C. max.
160 mA A.C. max.
ELC contacts:
(Electric Latch Control)
30 Volt, 5 Amp A.C./D.C. SPST.
Programmable as N.O. or N.C.
DOTL contacts:
(Door Open Too Long)
30 Volt, 1 Amp A.C./D.C. SPST.
Operating Temperature:
0C to 70C.
Size:
104mm x 72mm x 27mm.
Weight:
150gms.
1Operating the unit at a voltage outside the specified range
may cause intermittent operation or result in damage to
the unit.

3
TERMINAL DESCRIPTIONS
GND Negative input (or ground) from the power supply.
AC-DC A.C. 16 - 24 Volt or D.C. 12 - 24 Volt positive input
from the power supply.
DTA Data line to encoder (white wire on keypads).
LED Output to drive a LED to indicate door unlocked.
ELC (Electric Latch Control) 5 Amp relay output. The
ELC relay is used to control the door
locking/release mechanism. The relay can be
programmed as either Normally Open for fail
secure applications (power applied to open door)
or Normally Closed for fail safe applications (power
applied to lock door).
DOOR This input requires a normally closed switch
connected to ground, typically a reed switch
attached to the door. The DOOR input is used by
the PAC1 to monitor when the door is physically
open (not unlocked). To use this input, it must first
be enabled (via memory 84, refer to page 15) and
a normally closed (when the door is closed) door
switch (or monitored lock contacts) must be
connected between DOOR and GND. The DOOR
input is used to detect when the door has been
opened for use by the door forced open, Door Open
Too Long and automatic relock functions.
DOTL (Door Open Too Long) 1 Amp Normally Open relay
output, operates when a DOTL or Door Forced
Open alarm condition occurs.

4
EGRS The EGRESS input can take either a normally open
or normally closed switch between EGRESS and
GND. When this input is activated the ELC relay
will come on and remain on for the time that the
EGRESS input is on. Once the EGRESS input is
released the timing set for ELC will begin. The
other selected features of the PAC1 (DOTL, Door
Forced Open & Automatic Relock) will also become
active at this time. Therefore, the EGRESS input
can be used to hold the door open indefinitely with
the use of a toggle switch, or with the use of a
momentary type switch it can be used to release
the door for a set time in the same way that a
momentary user code does.
DLOG Data input/output for connection to an optional
PEL1 event logger or a PACDL when in Series 2
Compatible mode.

5
PROGRAMMABLE FEATURES DESCRIPTION
Automatic Relock Function
When the DOOR input is used then the Automatic Relock
function can be used. This feature turns the ELC relay off 1
second after the door is opened (not unlocked) when a
momentary code or the EGRESS input has been used (no
matter how long the time for the ELC relay operation has
been set for in memory 83). The purpose of this feature is to
stop people following someone through the door by ensuring
that the door locks once it closes.
Door Open Too Long
The DOTL timer is used to warn if the door has been held
open for too long after a valid access (either via a code or
EGRESS). When the door has been opened a countdown
timer is started (the time set in memory 85, refer to page 16).
If the door has not closed again by the time this counter
expires then the DOTL output will activate (contacts will
close) and will remain active until the door is closed. Note
that if a value of 0 has been set for the DOTL time then the
door is allowed to remain open indefinitely.
Door Forced Open
A door forced open condition is defined by the situation
where the door has been opened but a code or EGRESS has
not been used to gain access. When this condition occurs
the DOTL output will activate (contacts will close) and will
remain active for 30 seconds or until the door is closed again
(whichever is the longer time). Note that the Door Forced
Open feature must be disabled (set in memory 86, refer to
page 16) if a free (unmonitored) inside door handle is used
instead of an EGRESS button. When this feature is disabled
the Door Open Too Long timer will be started when the PAC1
detects the door has been opened.

6
One Minute Lockout
To increase security the PAC1 can be set to lock out all codes
for a period of 1 minute after 5 incorrect codes have been
tried (set in memory 87, refer to page 16). Note that this
feature should not be enabled if access must be guaranteed
in an emergency situation.
High Security Mode
The PAC1 can be set up to operate in one of the four modes
described below.
Normal Mode (High Security Mode Disable)
Any one of the programmed user codes will operate the
ELC relay.
Any Two User Codes
Any two of the programmed user codes must be used
together to operate the ELC relay.
Code 000 or 001 and any other user code
The user code stored in memory 000 or 001 used together
with any other valid user code will operate the ELC relay.
Sequential Memory User Codes
Two user codes in sequential memory locations must be
used together to operate the ELC relay. The paired code
locations start with an even number, e.g. 000 & 001, 056
& 057, 138 & 139, etc.
IMPORTANT NOTE: When the PAC1 is set up to use any
of the high security modes above, the ELC relay will only
operate in Momentary (timed) Mode even if the codes are
programmed as Toggle codes.

7
INSTALLATION
Read all instructions carefully before installing, programming
and using the system. It is vital that all power be
disconnected during wiring.
To maximise security, ensure that the decoder and encoder
components are separated, and that the decoder is
inaccessible to persons outside the restricted area. The
decoder should be installed indoors and in a dry secure
place. The maximum distance of separation between the
decoder and encoder is 1 kilometre.
The wiring diagrams for installation are on the following
pages.
VR43 (AND VR62) KEYPAD WIRING

8
PSK16 (AND PRE) KEYPAD WIRING
PSC16 AND PSR16 KEYPAD & PROX READER WIRING

9
PSE-IL KEYPAD WIRING
PRO2410 PROX READER WIRING

10
D.C. LOCK A.C. LOCK
* Use 1N4004 diode only when
using a Door Strike, not a
Magnetic Lock or Drop Bolt.
VOLTAGE FREE CONTACT OUTPUT
EGRESS SWITCH INPUT DOOR SWITCH INPUT

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PROGRAMMING
The most common method of programming is using a Presco
keypad connected to DTA.
Alternatively, a PEL1 or PIM connected to DLOG can be
used.
To enable programming with a keypad the PAC1 must first
be put into program mode. This is accomplished by pressing
the program button located in the bottom centre of the PAC1
below the “PUSH TO PROGRAM” text. When the program
mode is entered the LED above the program button in the
PAC1 will light up. Pressing the program button again will
take the PAC1 out of program mode.
The PAC1 will remain in program mode for a period of 5
minutes after the button has been pressed. Each time the
keypad is used to successfully enter information the 5 minute
timeout period is restarted.
The PAC1 can be forced to exit program mode from the
keypad by simply entering .
When the PAC1 is in program mode the green or blue LED
on an attached PSK16, PSC16, PTKR, VR43 or VR62
keypad will flash at a rate of once per second (provided it has
been wired as shown in the wiring diagrams on pages 7 & 8).
Programming of installation options via a keypad use the
following sequence:-
“2 digit memory number” “memory value” 
KEYPAD RESPONSES
•warble (ringing) = successful programming operation
finished.
•long beep = unsuccessful operation.

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NOTE all keys in a sequence (up to and including the )
must be pressed within 10 seconds of each other. If incorrect
keys are pressed wait 10 seconds and then enter the
sequence again.
USING A PRESCO KEYPAD WITHOUT KEY
When using a keypad that does not have an key (VR43,
VR62, PTKR or PSE), simply use the key instead of 
at the end of the sequence, all other steps remain the same.
DELETE ALL USER CODES.
All the user codes memories (000 to 599) can be cleared by
the use of the following sequence.

RESET TO FACTORY DEFAULTS.
The PAC1 can be reset to factory defaults by the use of the
following sequence.
WARNING: Using this code will delete all user codes, the
management code and reset memories 80 to 99 back to their
factory default settings.
To reset the PAC1 to factory defaults…


13
BASIC SETUP SEQUENCE
1/ Enable/Disable SERIES 2 COMPATIBILITY (Currently
disabled). [Memory 99, page 18]
2/ Select ELC RELAY TYPE (Currently N.O.).
[Memory 82, page 15]
3/ Select EGRESS switch type (Currently N.O. level
triggered). [Memory 81, page 14]
4/ Set ELC OPERATE TIME (Currently 10 seconds).
[Memory 83, page 15]
5/ Enable/Disable DOOR INPUT (Currently disabled).
[Memory 84, page 15]
6/ Set Door Open Too Long time (Currently 60 seconds).
[Memory 85, page 16]
7/ Enable/Disable DOOR FORCED OPEN DETECTION
(Currently enabled). [Memory 86, page 16]
8/ Enable/Disable AUTOMATIC RELOCK (Currently
enabled). [Memory 80, page 14]
9/ Enable/Disable 1 MINUTE LOCKOUT (Currently
disabled). [Memory 87, page 16]
10/ Enable/Disable HIGH SECURITY MODE (Currently
disabled). [Memory 88, page 17]
11/ Set HIGH SECURITY MODE TIMING, if enabled in
step 9 above (Currently 60 seconds).
[Memory 89, page 17]
12/ Enable/Disable MOMENTARY CODES TURN OFF
TOGGLE (Currently disabled). [Memory 91, page 18]

14
Automatic Relock Memory 80
(Factory Default: Enabled)
Disabling the Automatic Relock function prevents the ELC
relay output from deactivating 1 second after the door is
opened. This function is only valid when the DOOR input is
being used.
To disable the Automatic Relock function…

To enable the Automatic Relock function…

EGRESS Switch Type Memory 81
(Factory Default: Normally Open Level Triggered)
Either a normally open or normally closed EGRESS switch
setting may be selected.
To set the EGRESS switch input to N.O. level triggered…

To set the EGRESS switch input to N.C. level triggered…

To set the EGRESS switch input to N.O. edge triggered…

To set the EGRESS switch input to N.C. edge triggered…

When level triggered is selected the door will remain
unlocked whilst the egress is activated (button held on), once
the input is released normal ELC the timing will start.
When edge triggered is selected the door will unlock only for
the time set for ELC regardless of how long the egress input
is active for (button held on).

15
ELC Relay Type Memory 82
(Factory Default: Normally Open)
The electronic latch control (ELC) relay can be set to operate
as either Normally Open (N.O.) for fail secure or Normally
Closed (N.C.) for fail safe.
To set the ELC relay type to normally open…

To set the ELC relay type to normally closed…

ELC Operating Time Memory 83
(Factory Default: 10 seconds)
The electronic latch control (ELC) relay can be set to operate
for 1 second to 255 seconds in 1 second increments.
To change the ELC operate time…
“the time in seconds” 
Door Input Enable Memory 84
(Factory Default: Disabled)
If the “Door Open Too Long” and “Door Forced Open”
functions are required, then the input from the door switch
must be enabled. Note: enable only if your door has a reed
switch or the latch is monitored.
To disable the door input…

To enable the door input…


16
Door Open Too Long Timer Memory 85
(Factory Default: 60 seconds)
The time allowed for the door to be open before a DOTL
alarm is generated can be set from 1 to 9999 seconds. A
time of zero seconds will disable this function.
To change the DOTL time…
“the time in seconds” 
Note that time of 0 seconds will disable the DOTL function.
Door Forced Open Detection Memory 86
(Factory Default: Enabled)
Disabling the Door Forced Open function prevents the DOTL
output from activating (contacts closing) when the door is
opened without a valid code or EGRESS switch having been
used.
To disable Door Forced Open Detection…

To enable Door Forced Open Detection…

One Minute Lockout Memory 87
(Factory Default: Disabled)
Enabling the 1 minute lockout function means that the system
will not accept any codes for 1 minute after 5 successive
invalid codes have been entered.
To disable the one minute lockout…

To enable the one minute lockout…


17
High Security Mode Memory 88
(Factory Default: Normal Mode)
The high security mode memory is used to select the mode
that the PAC1 operates in. The value programmed into
memory 88 selects either Normal Mode, Any Two User
Codes, Code 000 or 001 and any other user code or
Sequential Memory User Codes. For a description of each
of these operating modes refer to the High Security Mode
section on page 6.
To select Normal Mode (High Security Mode Disabled)…

To select Any Two User Codes mode…

To select Code 000 or 001 and any other user code mode…

To select Sequential Memory User Codes mode…

IMPORTANT NOTE: When the PAC1 is set up to use any
of the highsecurity modes above (not Normal Mode) the ELC
relay will only operate in Momentary (timed) Mode even if
the codes are programmed as Toggle codes.
High Security Mode Timing Memory 89
(Factory Default: 60 seconds)
If the PAC1 is set up to operate in any of the High Security
Modes above, then the two codes must be entered within the
time specified in memory 88. This time may be set between
1 and 255 seconds.
To set the time allowed between two codes…
“the time in seconds” 