Nidac Presco PIM 3 Series, Installation Manual, Page: 1 / 4

1
INTRODUCTION
The Presco™ Interface Module (PIM) can be used to
convert commonly used data formats to Nidac
Presco™, RS232, Clock & Data or Wiegand format
data.
FEATURES
•
Converts from Wiegand
, RS232, Nidac Presco™,
Clock & Data (Magnetic Card) or Dallas i
Button™
(commonly referred to as Silicon Key) format.
•
Converts to Nidac Presco™, RS232, Clock & Data
(Magnetic Card) or Wiegand format.
•
Can convert to or from Wiegand with up to 64 bits
of data, including up to 32 bit site code plus
optional start and end parity bits.
•
User programmable site code when converting to
Wiegand.
•
Reads up to 64 bits from Dallas i
Button™ user
memory or 56 bits from factory ID.
•
Reads up to 32 characters or digits from Track 1, 2
or 3 Clock & Data (magnetic card) format input.
•
User programmable settings using standard
Presco™ keypad or via RS232 link (software for
RS232 programming is available from Nidac’s
website
www.nidac.com ).
•
Compatible with all
current Nidac Presco™
encoders and decoders.
SPECIFICATIONS
Voltage: 10 to 15 Volts D.C.
Current: 30mA max (plus 5V
output draw).
Dimensions: 66mm x 67mm x
23mm.
Weight: 45gms.
Wiegand Pulse Width: 50

s
Pulse Separation: 2ms
RS232: Baud Rate: 300, 600, 1200, 2400,
4800, 9600, 19200,
38400, 57600 or
115200 bps.
Data bits: 8
Parity: None, Odd or Even.
Handshaking: Hardware or None.
TERMINAL DESCRIPTIONS
+12V DC The positive D.C. power input.
GND The Ground (or Negative) power input.
This is also a common reference
connection for all devices connected to
the PIM. i.e. all devices connected to the
PIM require their GNDs to be connected
together.
DTA
Presco™ data input/output.
IN-A Input A (Wiegand D0, Clock & Data RDP
or iButton
™).
IN-B Input B (Wiegand D1 or Clock & Data RCP).
OUT-A Output A (Wiegand D0 or Clock & Data
RDP).
OUT-B Output B (Wiegand D1 or Clock & Data
RCP).
+5V OUT A 5 Volt D.C. power output for powering
connected equipment (100mA. max.).
RX The RS232 Receive input (DO NOT USE
THIS TERMINAL WHEN USING THE
RS232 DB9 CONNECTOR!)
.
TX The RS232 Transmit output.
CABLING DISTANCES TO PIM
Device Cable type Max
length
RS232 7/020 shielded or CAT 5
UTP cable.
4 core (3 wires) required for
no handshaking.
6 core (5 wires) required for
hardware handshaking.
10m
iButton
™
Telephone cable
Must be unshielded twisted
pair.
2 core for reader only.
4 core for LED
control.
10m
iButton
™
CAT 5 cable.
Use 1 pair for reader, any
other wires for LED control.
100m
Clock &
Data 7/020 shielded cable.
4 core for reader only.
6 core for LED
control.
Ground the shield at PIM end
only.
100m
Wiegand 7/020 shielded cable.
4 core for reader only.
6 core for LED
control.
Ground the shield at PIM end
only.
100m
Presco™
PSC16 or
PRE keypad
7/020 unshielded cable.
2 core (figure 8) for data
only, no LED control.
4 core for PSK16/PRE with
LED control.
1000m
Presco™
PSE keypad
without
backlighting
2 core (figure 8) 7/020
unshielded cable. 1000m
Presco™
PSE keypad
with
backlighting
4 core 7/020 unshielded
cable.
NOTE decreased distance is
due to extra current drawn by
backlighting.
4 core 14/020 unshielded
cable.
500m
1000m
Presco™
PRO2410,
PSC16 or
PSR16
proximity
reader
4 core 7/020 unshielded
cable.
4 core 14/020 unshielded
cable.
NOTE decreased distance is
due to extra current drawn by
powering the reader.
350m
800m
Presco™
VR43 or
VR62
keypad.
4 core 7/020 unshielded
cable.
4 core 14/020 unshielded
cable.
NOTE decreased distance is
due to extra current drawn by
powering the keypad.
350m
800m
NOTE all distances are based on a supply voltage of
12.0V D.C. at the PIM.
LINK SETTINGS SUMMARY
Links Input Output
Clock & Data
Presco™ (PAC1/PAC2),
Wiegand and RS232
RS232 Clock & Data
Clock & Data
Presco™ (KCx or PDA),
Clock & Data and RS232
Presco™
Clock & Data
RS232
Presco™
Presco™ DLOG
(from PACDL)
RS232
RS232
Presco™ DLOG
(to PAC1 or PAC2 for use
with PIM-PAC software)
Presco™
RS232
Dallas iButton
™
Presco™ (PAC1/PAC2),
Wiegand and RS232
Use this setting to reset the memories
to defaults when unit is powered up with
program button depressed.
Dallas iButton
™
Presco™ (KCx or PDA),
Clock & Data and RS232
DO NOT USE. Reserved for future use.
Wiegand
Presco™ (PAC1/PAC2),
Wiegand and RS232
RS232 Wiegand
Wiegand
Presco™ (KCx or PDA),
Clock & Data and RS232
Presco™
Wiegand
Wiring Diagrams
From Presco™ PSK16 (shown) or PRE
From Presco™ PRO2410 (shown), PSC16 or PSR16
From Presco™ VR43 (shown) or VR62
PIM
Presco™ Interface Module
“Series 3”
Revision h
Installation Manual 1
st
Edition
N761