Chamberlain SENTEX Infinity Series User manual

Doc. 6001565
Doc. 6001565Doc. 6001565
Doc. 6001565
Rev C
Rev CRev C
Rev C
INFINITY
INFINITYINFINITY
INFINITY
INSTALLATION INSTRUCTIONS
WITH MULTI-LINK FIRMWARE
Software Rev. 2.0 and up
]

Doc 6001565 Rev C
TABLE OF CONTENTS
IMPORTANT NOTICES ............................................................................................................. 1
INSTALLATION TIPS ................................................................................................................ 1
PART 1 ARRANGING PHONE LINE INSTALLATION............................................................. 2
PART 2 WIRING BETWEEN UNITS......................................................................................... 2
PART 3 MOUNTING THE CABINET ........................................................................................3
PART 4 WIRING ....................................................................................................................... 5
A. TELEPHONE INTERFACE BOARD CONNECTIONS ............................................................................ 5
B. PROCESSOR BOARD SIGNAL CONNECTIONS .................................................................................. 6
C. OPTIONAL CLOSED CIRCUIT TELEVISION CONNECTIONS............................................................. 8
D. CONNECTING UNITS IN A CHAIN ........................................................................................................ 9
E. INSTALLING A NEW UNIT IN AN EXISTING MULTI-LINK CHAIN...................................................... 11
F. POWER CONNECTIONS...................................................................................................................... 11
G. POWER ON .......................................................................................................................................... 12
PART 5 INSTALLING ADDITIONAL FEATURES ..................................................................13
A. POSTAL LOCK INSTALLATION ........................................................................................................... 13
B. AUXILIARY OPENING/REQUEST ACCESS DEVICES........................................................................ 13
C. DOOR POSITION SENSING ................................................................................................................ 13
D. BAUD RATE FOR RS-232 COMMUNICATION .................................................................................... 14
E. HOOKING UP AN EXTERNAL MODEM ............................................................................................... 14
F. HOOKING UP A TERMINAL ................................................................................................................. 15
G. HOOKING UP A PRINTER ................................................................................................................... 18
H. HOOKING UP REMOTE KEYPADS/KEYPAD LIGHTS........................................................................ 20
I. HOOKING UP CARD READERS........................................................................................................... 20
J. HOOKING UP BUILT-IN MODEM/REMOTE PROGRAMMING/MULTIPLE ENTRY ............................ 22
K. HOOKING UP OPTIONAL CCTV.......................................................................................................... 22
PART 6 INSTALLING THE AUXILIARY RELAY MODULE.................................................... 23
PART 7 TESTING AND ADJUSTING THE UNITS ................................................................. 25
A. SEQUENCE THE UNITS IN THE CHAIN.............................................................................................. 25
B. LCD DISPLAY/FAN ............................................................................................................................... 25
C. TELEPHONE ENTRY............................................................................................................................ 26
D. CARD ENTRY ....................................................................................................................................... 28
E. CODE ENTRY ....................................................................................................................................... 28
F. POSTAL LOCK, REQUEST FOR ACCESS, DOOR POSITION MONITORING .................................. 28
G. BUILT-IN MODEM................................................................................................................................. 28
H. MULTIPLE ENTRY................................................................................................................................ 29
I. METHOD OF DIALING ........................................................................................................................... 29
J. OPTIONAL CCTV MONITORING.......................................................................................................... 29
FCC REQUIREMENTS ............................................................................................................ 30
DOC REQUIREMENTS ........................................................................................................... 31

Doc 6001565 Rev C
TABLE OF FIGURES
Figure 1: Mounting the Cabinet ....................................................................................................... 3
Figure 2: Telephone Interface Board Connections .......................................................................... 5
Figure 3: Infinity Circuit Board Connections (1100023 Board) ......................................................... 6
Figure 4: Infinity Circuit Board Connections (1100072 Board) ......................................................... 7
Figure 5: Optional CCTV Unit.......................................................................................................... 8
Figure 6: Connecting Multiple Units Via RS-232 Ports .................................................................... 9
Figure 7: Connecting Multiple Units Through Short-Haul Modems ................................................ 10
Figure 8: RS232 Connections with Dual Short-Haul Modems and Multiple Units........................... 10
Figure 9: Hooking Up an External Modem..................................................................................... 14
Figure 10: Direct Connection Between Computer and Unit 1 of Multi-Link Chain .......................... 16
Figure 11: DB25 Connections ....................................................................................................... 16
Figure 12: DB9S Connections....................................................................................................... 17
Figure 13: PC/Terminal Connected to First Infinity in a Chain Via Stand Alone Modem ................ 18
Figure 14: Printer Connected to Last Unit of Multi-Link Chain ....................................................... 19
Figure 15: Auxiliary Relay Module ................................................................................................. 24
Figure 16: Telephone Interface Board, Adjustments and Indicators .............................................. 26
Figure 17: CCTV Power Supply Board J1 Connector .................................................................... 29
COPYRIGHT2002
ALL RIGHTS RESERVED
This document is protected by copyright and may not be copied or adapted without the prior written
consent of Sentex. This documentation contains information which is proprietary to Sentex and such
information may not be distributed without the prior written consent of Sentex. The software and
firmware included in the Sentex Infinity system as they relate to this documentation are also protected by
copyright and contain information proprietary to Sentex.
Sentex Systems
Chatsworth, CA
Visit us at www.sentexsystems.com

Rev C Doc 6001565 Page 1 of 31
IMPORTANT NOTICES
The Infinities are powerful and flexible access control systems, but may be damaged by incorrect installation.
In particular, it is critical that Infinity systems be grounded properly. Each system contains static
sensitive components that can be destroyed by static discharge if not grounded thoroughly.
WARNING: Incorrect installation invalidates the warranty.
Please take the time to read these instructions carefully before attempting installation.
INSTALLATION TIPS
The sections that follow contain detailed procedures for each step required to install an Infinity system. In
addition, the following installation tips will help ensure your installation is done correctly and efficiently.
1. GROUND THE UNIT. The Infinity contains parts which may be damaged by static discharge. A proper
earth ground connected to the upper left grounding screw shown in Figure 3 will significantly reduce the
chances of damage or improper operation. The shielding in the cables for all remote keypads or card
readers should be connected to the earth ground at the controller end of the cable only.
To be effective, the ground connection must be made by running 12 AWG copper wire to a good ground
point (e.g., an electrical panel, a metallic cold water pipe that runs into the earth, or a grounding rod at
least 10 feet in length that is driven into the earth) within 12 feet of the unit. Even if you have a good
earth ground, you should try to discharge any static before handling the circuit boards.
WARNING: Damage caused by static discharge is not covered by warranty.
CAUTION: Do not connect the two large heat sinks on the main circuit board together as doing so
can damage the power supply.
2. PROVIDE POWER FROM A DEDICATED SOURCE. The outlet(s) into which you plug the Sentex
provided transformer or an AC power supply should each be wired to their own circuit breaker. The
optional CCTV must be plugged into a separate outlet. This will reduce line noise introduced into system
power and minimize the risk of having other equipment interrupt unit operation.
3. DO NOT OVERLOAD THE TERMINAL BLOCKS. The terminal blocks used in the Infinity are
removable and the pins are soldered into the boards. To connect your wires, remove the "head" from
the correct terminals and open the screws. Insert the wire into the correct opening on the front and
tighten the screw until the wire is held snugly. When you have made all connections for a given "head",
plug it back onto the pins designated for that terminal block. Do the same for the optional CCTV board.
Stranded wire must be between 16 and 24 AWG. Solid wire must be between 18 and 24 AWG. This
is the total thickness measurement so, if you are putting two wires in, the combined thickness must fall
within this range. NEVER try to insert more than two wires per terminal.
4. READ THE MARKINGS CAREFULLY. The connection points are marked on the boards clearly. Before
making any connections, be sure to read the markings and check it against the corresponding figure in
these instructions so that you understand the connection you are making.
5. MOUNT THE UNIT AT THE CORRECT HEIGHT. Mount the Infinity according to local, state, or national
regulations (i.e., the Americans with Disabilities Act). If no such regulations apply, mount the "L" series
systems with the display center 5 1/2 feet high for walk-up installations and 4 feet high for drive-up
installations. Mount "S" series systems slightly lower because the LCD reads better from above.
6. CLEAN THE DISPLAY AND WINDOW: The LCD display, protective lexan window, and the curved
window in the “L” series display hood may be coated with an optional anti-glare formula. Dirt seriously
reduces this coating's effectiveness, making the display hard to read. Your customer MUST clean these
assemblies routinely using a soft rag and mild soap and water. Avoid harsh or abrasive cleaners.
7. TRAIN YOUR CUSTOMER. The Infinity is easy to program and use when you take a few minutes to
train the user, but untrained users can cause serious problems for you and for themselves.
SPEND THE TIME NOW to train your customer- it will save you both a lot of trouble later.

Page 2 of 31 Doc 6001565 Rev C
PART 1 ARRANGING PHONE LINE INSTALLATION
Your customer should have the telephone company install a telephone line as close as possible
to the Infinity system location.
• This line can use either tone or rotary dialing.
• Rotary lines are cheaper, but tone lines dial faster.
• The Infinity is factory-set to tone dial, but can be changed during installation (see Part 5).
• When ordering the telephone line, the phone company requires the following information:
FCC REGISTRATION NUMBER: DS83E7-1796-ALE
RINGER EQUIVALENCE NUMBER (REN): 0.1B
TYPE OF CONNECTOR REQUIRED: USOC RJ11C
PART 2 WIRING BETWEEN UNITS
If The Distance Between The Units Is Under 30 Feet:
• Connect via the RS-232 ports.
• You will need 5 conductor 18 to 24 AWG cable (Belden #8445 or equivalent for unshielded
installations; Belden #9929 or equivalent for shielded installations).
If The Distance Between The Units Is 30 Feet Or More:
• Connect through the dual short-haul modems.
• You will need 2 conductor 16 to 24 AWG twisted pair cable (Belden #8740 or equivalent for
unshielded installations; Belden #9501 or equivalent for shielded installations).

Rev C Doc 6001565 Page 3 of 31
PART 3 MOUNTING THE CABINET
♦ This manual describes the "L" series (with telephone entry capability and a large display), since
this is the most complicated installation. The unit is shown with optional CCTV.
♦ If your system is a "B", "S", or "DI" series, skip the sections that do not apply.
NOTE: "B" series Infinitys with the built-in modem option may have a telephone interface board.
♦ To save space in this manual, some drawings are composites of several models.
IMPORTANT NOTE
Most Sentex Systems cabinet locks are commonly keyed, but can be easily replaced with
individually keyed locks by a locksmith.
Figure 1: Mounting the Cabinet
NOTES
♦ When mounting the cabinet, minimize disassembly of the unit, and take particular care to
handle of the circuit boards as little as possible.
♦ Ground yourself whenever you are handling the circuit boards. If no ground can be found,
attempt to discharge any static build-up before handling the boards.
♦ Never remove the display assembly from the faceplate. If you must remove the faceplate
for some reason, remove it as a complete assembly.
♦ If you must remove any other circuit boards, leave them assembled.
1. Remove the screw securing the lower right corner of the circuit board to the metal stand-off.
2. Remove the locking nut securing the circuit board and grounding lug to the upper left metal
stand-off.
3. Using a pair of needle nose pliers, compress the locking tab on the lower left plastic stand-off
while carefully lifting that corner of the circuit board. Repeat this step for the upper right plastic
standoff.
4. Carefully remove all cables connected to circuit board connectors, then remove the circuit
board from the cabinet and place on a smooth, clean surface.

Page 4 of 31 Doc 6001565 Rev C
5. For wall mount: Remove the bottom left knockout from the back of the cabinet.
For pedestal mount: Remove the center knockout from the back of the cabinet.
To enter the cabinet elsewhere, drill a hole through the cabinet and make sure you carefully
remove all debris.
6. Install the top two screws or bolts in the wall, pedestal, etc., but leave them loose. Hang the
cabinet on them, then install the screws/bolts in the bottom two openings. Securely tighten all
four screws/bolts.
7. GROUND THE CABINET AND CIRCUIT BOARD THOROUGHLY to a good earth/cold water
ground using the solder lug on the upper left circuit board standoff.
8. Pull all wires into the cabinet and dress to the left side.
NOTE: If unit has optional CCTV, dress the coaxial cable and CCTV power wire to right.
9. Remount the circuit board by carefully aligning the stand-off holes with the plastic stand-offs
and pressing down until the stand-off tabs lock.
10. Replace the screw securing the lower right corner of the circuit board to the metal stand-off.
11. Replace the locking nut securing the circuit board and grounding lug to the upper left metal
stand-off.
12. Carefully reconnect all circuit board cables that were disconnected before.
IMPORTANT NOTICE
Infinity "L" series systems exposed to temperatures above 80 degrees F and/or direct sunlight
for extended periods utilize the internal cooling fans to prevent temporary "blotching" of the
display. Even with the fans, mounting the unit in the shade will help maintain optimum display
readability.

Rev C Doc 6001565 Page 5 of 31
PART 4 WIRING
A. TELEPHONE INTERFACE BOARD CONNECTIONS
Telephone Interface Board (SN1100329)
CLICK LEVEL
VR3 SPEAKER
LEVEL
VR4
HANDSET
TB1
PANEL
SPEAKER
J1
CLICK
DETECT
GROUND
1564F3
LINE
OFF HOOK
RING
CLICK LEVEL
Daughter Board (SN1110080)
TELCO LINE
MIC
SENS PANEL
MIC
LINE BAL 2
LINE BAL 1
Figure 2: Telephone Interface Board Connections
Caution: To avoid potential damage to the board, remove power to the unit before connecting or
disconnecting the phone line.
1. Connect a two conductor, 18 to 22 AWG cable (Belden Datalene #9501 or equivalent) to
TELCO LINE on the right lower corner of the telephone interface board’s daughter board (see
Figure 2).
2. Connect the other end of this cable to the "tip" and "ring" terminals on the telephone company
jack (polarity is unimportant).

Page 6 of 31 Doc 6001565 Rev C
B. PROCESSOR BOARD SIGNAL CONNECTIONS
RS232 BAUD SEL
300 1200 2400 4800
HI
IN
LO
RED
GRN
RED
LARGE DISPLAY
CONNECTOR
J1
SMALL DISPLAY
CONNECTOR
J3
GROUND
SCREW
TB2
RS232
PORT 1
CTS
OUT
GND
IN
RTS
CLEAR TO SEND
RS232 OUT
GROUND
RS232 IN
REQUEST TO
SEND
12V AC/
13.5V DC
POWER
TB1
TB3
RS232
PORT 2
CTS
OUT
GND
IN
RTS
CLEAR TO SEND
RS232 OUT
GROUND
RS232 IN
REQUEST TO
SEND
TB4
LED A
A RDR 1
A RDR 0
+5VDC
GND
LED A
A READER DATA 1
A READER DATA 0
+5 VDC
GROUND
TB6
LED B
B RDR 1
B RDR 0
+5VDC
GND
LED B
B READER DATA 1
B READER DATA 0
+5 VDC
GROUND
4 AMP FUSE
STATUS LINE 3
COMMON
STATUS LINE 4
TB7
STATUS 3
COM
STATUS 4
STATUS LINE 1
COMMON
STATUS LINE 2
TB8
STATUS 1
COM
STATUS 2
COMMON
NOR. OPEN
NOR. CLOSED
TB9
COM
NO
NC
RELAY 1
COMMON
NOR. OPEN
NOR. CLOSED
TB11
COM
NO
NC
RELAY 3
COMMON
NOR. OPEN
NOR. CLOSED
TB10
COM
NO
NC
RELAY 2
COMMON
NOR. OPEN
NOR. CLOSED
TB12
COM
NO
NC
RELAY 4
REMOTE A KEYPAD
1 2 3 4 5 6 7
TB14
REMOTE B KEYPAD
1 2 3 4 5 6 7
TB15
CONTRAST ADJ
CONTRAST
ADJUSTMENT
POT
HAND HELD TERMINAL
J14
A KEYPAD
J7
TEMP SENSE
MONTIOR
CLEAR
J9
HANDHELD
PROGRAMMER
CONNECTION
MAIN
KEYPAD
+12VDC
RDR
POWER
TB5
+12VDC
READER
POWER
1016F9
KEYPAD LIGHT
J19J18
HEATER A
J17
FAN B
J16
FAN A
Figure 3: Infinity Circuit Board Connections (1100023 Board)

Rev C Doc 6001565 Page 7 of 31
RS232 BAUD SEL
300 1200 2400 4800
HI
IN LO
RED
GRN RED
LARGE DISPLAY
CONNECTOR
J1
SMALL DISPLAY
CONNECTOR
J3
GROUND
SCREW
TB2
RS232
PORT 1
CTS
OUT
GND
IN
RTS
CLEAR TO SEND
RS232 OUT
GROUND
RS232 IN
REQUEST TO
SEND
12V AC/
13.5V DC
POWER
TB1
J19 J18
J17 J16
TB3
RS232
PORT 2
CTS
OUT
GND
IN
RTS
CLEAR TO SEND
RS232 OUT
GROUND
RS232 IN
REQUEST TO
SEND
TB4
LED A
A RDR 1
A RDR 0
+5VDC
GND
LED A
A READER DATA 1
A READER DATA 0
+5 VDC
GROUND
TB6
LED B
B RDR 1
B RDR 0
+5VDC
GND
LED B
B READER DATA 1
B READER DATA 0
+5 VDC
GROUND
STATUS LINE 3
COMMON
STATUS LINE 4
TB7
STATUS 3
COM
STATUS 4
STATUS LINE 1
COMMON
STATUS LINE 2
TB8
STATUS 1
COM
STATUS 2
COMMON
NOR. OPEN
NOR. CLOSED
TB9
COM
NO
NC
RELAY 1
COMMON
NOR. OPEN
NOR. CLOSED
TB11
COM
NO
NC
RELAY 3
COMMON
NOR. OPEN
NOR. CLOSED
TB10
COM
NO
NC
RELAY 2
COMMON
NOR. OPEN
NOR. CLOSED
TB12
COM
NO
NC
RELAY 4
REMOTE A KEYPAD
1 2 3 4 5 6 7
TB14
REMOTE B KEYPAD
1 2 3 4 5 6 7
TB15
CONTRAST ADJ
CONTRAST
ADJUSTMENT
POT
HAND HELD TERMINAL
J14
A KEYPAD
J7
TEMP SENSE
MONTIOR
CLEAR
J9
HANDHELD
PROGRAMMER
CONNECTION
MAIN
KEYPAD
+12VDC
RDR
POWER
TB5
+12VDC
READER
POWER
1019F6
KEYPAD LIGHT HEATER A
FAN B FAN A
Figure 4: Infinity Circuit Board Connections (1100072 Board)

Page 8 of 31 Doc 6001565 Rev C
Refer to Figure 3 & Figure 4 and connect the wires from Infinity-controlled devices as follows:
Relay/door 1 .....TB 9
Relay/door 2 .....TB 10
Relay 3 .............TB 11
Relay 4 .............TB 12
Which terminals are used depends on the type of device being controlled:
♦ Dry Contact Closures (most gate operators): Connect wires to NO and COMMON terminals.
♦ Normally Locked Strikes: Connect one wire from the strike power supply to the NO terminal
and one wire from the door strike to COMMON on the same terminal block. Connect the
remaining wires from each source off the board with a wire nut.
♦ Magnetic Locks and Normally Unlocked Strikes: Connect one wire from the power supply
to the NC terminal and one wire from the door strike to COMMON on the same terminal block.
Connect the remaining wires from each source off the board with a wire nut.
CAUTION
Magnetic locks and DC powered strikes produce potentially damaging voltage spikes. Sentex
strongly recommends installing an IN4001 diode across the magnetic lock coil with the cathode
(the banded end) connected to the positive side of the coil, and the anode connected to the
negative side of the coil.
C. OPTIONAL CLOSED CIRCUIT TELEVISION CONNECTIONS
Figure 5: Optional CCTV Unit
NOTE: You will need a monitor, or a television with a video input to see the picture provided by the
Closed-Circuit Television.
1. Connect a two-conductor 10 to 18 AWG cable (Belden Datalene #9501 or equivalent) to TB1 on the
right lower corner of the CCTV Power Supply Board.
2. Connect coaxial cable (Belden #9240 or equiv.) with BNC connectors (Amphenol #31-71008 or
equiv.) to right angle BNC connector at J2, on the middle bottom of the CCTV Power Supply Board.

Rev C Doc 6001565 Page 9 of 31
D. CONNECTING UNITS IN A CHAIN
If The Units Are Under 30 Feet Apart:
1. Connect the units via the RS-232 serial ports (see Figure 3 & Figure 4 circuit board diagrams).
2. On the first unit: remove the jumper from the CTS and RTS terminals on TB3.
3. Plug the 5 conductor cable into TB3.
4. On the second unit: remove the jumper from the CTS and RTS terminals on TB2.
5. Plug the loose end of the 5 conductor cable into TB2.
6. To connect additional units, repeat steps 2 through 5. The same connections are made between
the second unit and the third unit, the third unit and the fourth unit, etc.
IMPORTANT: Do not remove:
•The jumper from the CTS and RTS terminals on TB2 on the first unit in the chain.
•The jumper from the CTS and RTS terminals on TB3 on the last unit in the chain.
Table A. RS-232 Connections
TB3 ON FIRST UNIT TB2 ON SECOND UNIT
Clear to send (CTS) Request to send (RTS)
RS-232 Out (OUT) RS-232 In (IN)
Ground Ground
RS-232 In (IN) RS-232 Out (OUT)
Request to send (RTS) Clear to send (CTS)
1016F2
RTS
IN
GND
OUT
CTS
RTS
IN
GND
OUT
CTS
RTS-CTS
Jumper
RTS-CTS
Jumper
RS-232 PORT 1
RS-232 PORT 2 RS-232 PORT 2 RS-232 PORT 2
RS-232 PORT 1 RS-232 PORT 1
Multi-Link Unit 1 Multi-Link Unit 2 Multi-Link Unit 3
Figure 6: Connecting Multiple Units Via RS-232 Ports

Page 10 of 31 Doc 6001565 Rev C
If The Units Are 30 Or More Feet Apart:
Connect the units through the dual short-haul modems (See Figure 7).
1. On the first unit, insert the 2 conductor cable into the LINE 2 plug and tighten the screws
securely. It does not matter which wire is inserted into which opening of the plug (See Figure 8).
2. On the second unit, insert the the loose end of the 2 conductor cable into the LINE 1 plug and
tighten the screws securely (See Figure 8).
3. To connect additional units, repeat steps 2 and 3. The same connections are made between the
second unit and the third unit, the third unit and the fourth unit, etc.
Figure 7: Connecting Multiple Units Through Short-Haul Modems
CTS
CTS
OUT
RS232 PORT
OUT
GND
GND
IN
IN
RTS
RTS
MIDDLE MULTI-LINK UNIT(S)
XMIT (GRN)
TSD (YEL)
RSD (RED)
RCV (GRN)
Line 1
Line 2
TB 5
+12 V
DC PWR
DS8
DS7
DS6
DS5
DS9
DS2
DS3
DS1
DS4
PORT 1
PORT 2
XMIT (GRN)
TSD (YEL)
RSD (RED)
RCV (GRN)
POWER (RED)
CTS
CTS
OUT
OUT
GND
GND
IN
IN
RTS
RTS
DUAL SHORT-HAUL MODEM
XMIT (GRN)
TSD (YEL)
RSD (RED)
RCV (GRN)
Line 1
TB 5
+12 V
DC PWR
DS8
DS7
DS6
DS5
DS9
DS2
DS3
DS1
DS4
PORT 1
PORT 2
XMIT (GRN)
TSD (YEL)
RSD (RED)
RCV (GRN)
POWER (RED)
CTS
OUT
GND
IN
RTS
DUAL SHORT-HAUL MODEM
JUMPER
CTS
TO RTS
CTS
OUT
RS232 PORT
GND
IN
RTS
Line 2
CTS
OUT
GND
IN
RTS CTS
OUT
GND
IN
RTS
1st MULTI-LINK UNIT
XMIT (GRN)
TSD (YEL)
RSD (RED)
RCV (GRN)
Line 1
Line 2
TB 5
+12 V
DC PWR
DS8
DS7
DS6
DS5
DS9
DS2
DS3
DS1
DS4
PORT 1
PORT 2
XMIT (GRN)
TSD (YEL)
RSD (RED)
RCV (GRN)
POWER (RED)
CTS
CTS
OUT
OUT
GND
GND
IN
IN
RTS
RTS
DUAL SHORT-HAUL MODEM
JUMPER
CTS
TO RTS
Port 1
(TB2)
Port 2
(TB3)
Port 1
(TB2)
Port 2
(TB3)
Port 1
(TB2)
Port 2
(TB3)
CTS
CTS
OUT
RS232 PORT
OUT
GND
GND
IN
IN
RTS
RTS
LAST MULTI-LINK UNIT
See
Enlarged
Image
Below
See
Enlarged
Image
Below
See
Enlarged
Image
Below
See
Enlarged
Image
Below
RTS
IN
GND
OUT
CTS
OUT
GND
IN
RTS
CTS
DSH Modem
Infinity
Multi-Link Unit
NOTE: DSH Modem
nomenclature will
appear upside-down in
the unit as shown.
1016F8
Figure 8: RS232 Connections with Dual Short-Haul Modems and Multiple Units

Rev C Doc 6001565 Page 11 of 31
E. INSTALLING A NEW UNIT IN AN EXISTING MULTI-LINK CHAIN
1. Once the unit is installed, resequence all the units in the chain.
2. Enter the system’s configuration information into the new unit, (i.e., program access codes,
relay activation times, holiday schedules, etc.).
3. If you are using SPS or SPSWin:
A. Perform Receive All from the new unit’s memory.
B. Copy the system’s memory.
C. Enter the system’s configuration into SPS or SPSWin.
D. Send the new configuration to the new unit.
F. POWER CONNECTIONS
The Infinity system can operate on either AC or DC power.
AC POWER
Connect one end of a two conductor stranded wire cable to TB 1 on the main processor board
(see Figure 3 or Figure 4) and the other end to the transformer provided with the system. Then
plug the transformer into a 120 VAC outlet.
NOTES:
1. Line Loss: If system and power supply are too far apart, line loss may result in inadequate
voltage being delivered to the system. Refer to the chart below for wire sizes and distances.
2. Dedicated Power Source: Wire each outlet used by an Infinity to its own circuit breaker. This
reduces line noise and minimizes the risk of other equipment interrupting unit operation.
3. Dedicated Power Supply: The transformer used by the Infinity cannot provide power to the
door strikes (if used) or the optional CCTV.
DC POWER
Connect one end of a two conductor stranded wire cable to TB 13 (TB1 on E and F rev. boards)
on the main processor board (see Figure 3 or Figure 4) and the other end to the power supply.
Then plug the power supply into a 120 VAC outlet. Follow the same steps for optional CCTV.
NOTES:
1. DC Power: must be at least 13.5 Volts.
2. DC Input Fuse: The DC input on the Infinity board is not fused. The installer must wire a fuse
between the DC power supply and the system during installation.
3. Line Loss: If system and power supply are too far apart, line loss may result in inadequate
voltage being delivered to the system. Refer to the chart below for wire sizes and distances.
4. UPS: The Infinity will not trickle charge a battery, so DC power must be supplied by an
uninterruptible power supply.

Page 12 of 31 Doc 6001565 Rev C
OPTIONAL CCTV
AC or DC Power: Connect one end of a two conductor stranded wire cable to TB 1 on the main
processor board (see Figure 3 or Figure 4) and the other end to the transformer provided with the
system. Then plug the transformer into a 120 VAC outlet.
NOTES:
1. Line Loss: Refer to the chart below for wire sizes and distances.
Power Wiring Distances Camera Power Wiring Distances
Distance AC Power Wire DC Power Wire AC Power Wire DC Power Wire
Under 30 Feet 14 AWG
(Infin. L-tib/fans: 12 AWG)
18 AWG
(Infin. L: 16 AWG) 18 18
30 - 75 Feet 10 AWG 14 AWG
(Infin. L: 12 AWG) 18 18
75 - 150 Feet N/A 12 AWG
(Infin. L: 10 AWG) 14 18
150 - 250 Feet N/A 10 AWG
(Infin. L: N/A) 14 16
250 - 500 Feet N/A N/A 14 16
Wire Size and Distance Recommendations
G. POWER ON
MAIN PROCESSOR BOARD
The Infinity main processor board has a power monitor that indicates if proper voltage is available.
It has two red LEDs labeled HI and LO, one green LED labeled IN, and a MONITOR CLEAR
button, all located in the upper right corner of the main processor board (see Figure 3 or Figure 4).
If input power is not in the acceptable range, the HI or LO LEDs light and remain lit until the
MONITOR CLEAR button is pressed. This allows continuous power monitoring and captures any
transients.
Check voltage using the power monitor as follows:
1. Apply power to the board. The IN and LO LEDs will light.
2. Press the MONITOR CLEAR button located next to the LEDs.
♦If the IN LED lights, proper voltage is being provided.
♦If the LO LED lights, the voltage is too low. Check the power connections, wiring, and
transformer.
♦If the HI LED lights, the voltage is too high. Check the power connections, wiring, and
transformer.
CCTV POWER SUPPLY BOARD
Power comes on when the transformer or power supply is plugged in. There are no power
indicators on the board.

Rev C Doc 6001565 Page 13 of 31
PART 5 INSTALLING ADDITIONAL FEATURES
The Infinity system has many standard features which can be connected during installation. Only card
readers, built-in modems and CCTV cameras must be ordered as options.
IMPORTANT NOTE
It is critical to proper system operation that the specified cable types and grounding procedures be
used. If not, outside electrical interference (i.e., nearby power and control cables or radio station
broadcast towers) may cause erratic card or keypad readings or system resetting or lock-up.
WARNING: Before hooking up any of these features, disconnect power from the unit.
A. POSTAL LOCK INSTALLATION
If mail boxes are inside a controlled area, the post office requires their own lock be installed.
• A postal lock kit is provided with each system, which includes installation instructions.
• When the kit is installed, a postal carrier turning his key in the lock will activate the relay for a
programmable period of time.
• A record of this activity will be stored in the transaction memory buffer, and printed if this
system is equipped with a printer.
B. AUXILIARY OPENING/REQUEST ACCESS DEVICES
Any contact closure device (i.e. Knox box or exit button) can be wired to relays 1 and/or 2.
• To activate relay 1, connect the device to "Status 1" and "Common" on TB 8.
• To activate relay 2, connect, "Status 3" and "Common" on TB 7.
• Use shielded cable and connect the shield to the ground screw shown in Figure 3 or Figure 4.
• When a contact closure occurs, the system will activate the appropriate relay for a
programmable period of time. A record of this activity will be stored in the transaction memory
buffer, and printed if this system is equipped with a printer.
C. DOOR POSITION SENSING
Each Infinity can monitor the position of two doors and take action if the door is pried open or held
open for more than a minute after the relay deactivates.
• The system can call a telephone number to report this condition and/or close a relay to activate
any device you have hooked to it (i.e., light, siren, CCTV).
• If the door shuts before the relay times out, the relay is deactivated to stop "tailgating".
• To use this feature, install an NC (Normally Closed) switch in the door frame so the switch is
depressed when the door is closed.
• Wire the NC and COM switch terminals to "Status 2" and "Common" on TB 8 for door 1, and/or
• Wire the NC and COM switch terminals to "Status 4" and "Common" on TB 7 for door 2.
• If the door is located more than 25 feet from the Infinity, use shielded cable and connect the
shield to the ground screw shown in Figure 3 or Figure 4.

Page 14 of 31 Doc 6001565 Rev C
D. BAUD RATE FOR RS-232 COMMUNICATION
The Infinity can receive and transmit data via an RS-232 serial port at one of four baud rates (300,
1200, 2400, and 4800). The factory setting is 4800 baud.
Change the baud rate by moving the jumper on the RS-232 BAUD SEL shorting block (Fig. 3/4).
NOTE: •Make sure the baud rate is the same on all Multi-Link units in the chain.
•
••
•Make sure the baud rate is the same for any external device you connect, such as a
printer or terminal
E. HOOKING UP AN EXTERNAL MODEM
The Infinity can communicate with a remote terminal via RS-232 serial port 1 and modems.
POWER RS232
PHONE LINE
POWER
SOURCE PHONE
CONNECTION
TELCO
CONNECTION
EXTERNAL MODEM
TB2
Jumper
CTS to RTS
Jumper:
Pins 4 to 5
Pins 6 to 20
CTS
OUT
GND
IN
RTS
INFINITY
PROCESSOR
BOARD
DB25
Use 18-24 AWG,
3-Conductor, Shielded Cable
(50 Feet Max. Length)
7
DB25 PIN #
1565F1
Figure 9: Hooking Up an External Modem

Rev C Doc 6001565 Page 15 of 31
NOTES:
•Line-powered modems cannot be used with the Infinity.
•If external modems are connected to the Infinity telephone line, the Infinity must have the
multiple entry option installed so it does not come on line when the modem is active.
1. Use a 3 conductor, 18 to 24 AWG shielded cable (such as Belden Datalene #9925) and a DB25
connector, and ground the cable shield to the Infinity’s ground screw. These wires should not
be part of a larger cable containing wires used for any other purposes.
2. You can locate the modem up to 50 feet from the system at, any baud rate that matches the
Infinity baud rate (see Section D, above), and must be set to full duplex and a word protocol of
8 data bits, no parity bits, and 1 stop bit (8-none-1). Consult your modem manual to set this
protocol.
3. Refer to the table below for standard RS-232 modem connections.
DB25 Connections.
PIN NUMBER ON DB25 TERMINAL ON MAIN CIRCUIT BOARD TB 2
Place one jumper between pins 4 and 5 and
another between pins 6 and 20.
Place a jumper between pin 1 (CTS) and 5 (RTS).
2 ("transmit data") RS-232 in (IN)
7 ("signal ground") GROUND
3 ("receive data") RS-232 out (OUT)
NOTE: RS-232 port connections are determined by reading the equipment instructions.
F. HOOKING UP A TERMINAL
The Infinity works with any standard ASCII terminal that emulates a Televideo 910+ terminal.
Connect the terminal via the RS-232 serial port. You can buy a Wyse 30 terminal from
Sentex Systems. Personal computers with "terminal emulation" software may be used instead of
an actual terminal.
If The Terminal Or Computer Is Under 30 Feet Away:
1. Connect the terminal to the first unit in the chain. Plug the terminal into RS-232 Port 1
(see Figure 3 or Figure 4).
2. Disconnect the RS-232 connection from the short-haul modem to the Main processor board.
See Figure 3 or Figure 4.
3. Remove the power wire from TB5 on the short-haul modem.
4. Remove the other end of the power wire from TB5 on the main processor board.
NOTE: Do not use either of these terminal blocks for any other purpose.
5. Use a 3 conductor, 18 to 24 AWG shielded cable (such as Belden Datalene #9925). These
conductors should not be part of a larger cable that contains wires used for other purposes.
6. Use a DB25 male connector (DB9S if your computer has a 9-pin serial port), and ground the
cable shield at Infinity's ground screw.
7. Your terminal must be running at the same baud rate as the Infinity (see step D, above), and
must be set to full duplex communications and a word protocol of 8 data bits, no parity bits, and
1 stop bit (8-none-1). Consult your terminal's manual to determine how to set this protocol.
The connections for the video terminal or computer are shown below:

Page 16 of 31 Doc 6001565 Rev C
Figure 10: Direct Connection Between Computer and Unit 1 of Multi-Link Chain
DB25 Connections.
PIN NUMBER ON DB 25 TERMINAL ON MAIN CIRCUIT BOARD TB 2
Place one jumper between pins 4 and 5 and
another between pins 6 and 20.
Place a jumper between pins 1 ("cts") and 5 ("rts").
3 ("receive data") RS-232 out ("out")
7 ("signal ground") GROUND
2 ("transmit data") RS-232 in ("in")
TB2
Jumper
CTS to RTS
Jumper:
Pins 4 to 5
Pins 6 to 20
CTS
OUT
GND
IN
RTS
INFINITY
PROCESSOR
BOARD
DB25
Use 18-24 AWG,
3-Conductor, Shielded Cable
(30 Feet Max. Length)
7
DB25 PIN #
1565F3
Figure 11: DB25 Connections