LT-445 cover - Fire Alarm Systems & Fire Alarm Control Panels

24 Pages·2011·1.72 MB·English

Advanced Life Safety Solutions
MA-485A
Apartment Intercom Amplifier
1
I
Common
2
Wires 2
3
3
O
S1
Vestibule SI
Speaker
S2 S2
P.O. Lock P P
Buzzer Z
Z
Volume Door Fuse
Replace With
2 Amp Type
max. 3AG Only
MODEL MA-485A
WOODBRIDGE, VAUGHAN
ONTARIO, CANADA
L4K 5W3 16 VAC TI
MADE IN KOREA
T2 T2
Door Timer
T3 T3
L1 LI
DC Door
max.
L2 L2
L3 L3
AC Door
L4 L4
A A
Canada U.S.A. (cid:31) Mircom 2002
LT-445 Rev. 4.1
25 Interchange Way 60 Industrial Parkway Printed in Canada Installation and Operation Manual
Vaughan, ON L4K 5W3 Cheektowaga, NY 14227 Subject to change without prior notice June 2011
Tel: [phone] Fax: [phone] Tel: [phone] Fax: [phone] www.mircom.com

Table of Contents
Table of Contents
1.0 Introduction 5
1.1 About the MA-485A ........................................................................................................ 5
2.0 Mechanical Installation 6
2.1 Vestibule Enclosure Series ............................................................................................ 6
2.2 Compatible Mircom Suite Stations ................................................................................. 6
2.3 Compatible Mirtone Suite Stations ................................................................................. 6
3.0 Electrical Installation 7
3.1 Amplifier ......................................................................................................................... 7
3.2 Door Strike ..................................................................................................................... 7
3.2.1 Silent DC Door Strike Operation .................................................................................... 7
3.2.2 Buzzing AC Door Strike Operation ................................................................................ 7
3.2.3 Door Strike Other Than Mircom M-10/M-20 ................................................................... 8
3.2.4 Door Strike Electrical Requirements ............................................................................. 8
4.0 Specifications 9
4.1 MA-485A Amplifier ......................................................................................................... 9
4.2 PS-3B Transformer ........................................................................................................ 9
4.3 Wiring Specifications ...................................................................................................... 9
5.0 Multiple Stations in a Suite 10
6.0 Operating Instructions 11
6.1 Single Entrance .............................................................................................................. 11
6.2 Two or More Entrances .................................................................................................. 11
7.0 Troubleshooting 12
7.1 System Dead ................................................................................................................. 12
7.2 Distortion ........................................................................................................................ 12
7.3 Hum ............................................................................................................................... 12
7.4 Amplifier Voltage Chart .................................................................................................. 13
7.4.1 Figure 3: MA-485 Door Strike Field Modification ........................................................... 14
7.4.2 Single Vestibule Connection Diagram AC or DC Door Strike Operation ....................... 15
7.4.3 Dual Vestibule Connection Diagram AC Door Strike Operation .................................... 16
7.4.4 Dual Vestibule Connection Diagram DC Door Strike Operation .................................... 17
8.0 Warranty and Warning Information 18
3
List of Figures and Tables
List of Figures and Tables
Figure 1 Connection for Silent DC Door Strike ............................................................................. 7
Figure 2 Connection for Door Strike Other Than M-10 ................................................................ 8
Figure 3 MA-485 Door Strike Field Modification ........................................................................... 14
Figure 4 Single Vestibule Connection Diagram AC or DC Door Strike Operation ....................... 15
Figure 5 Dual Vestibule Connection Diagram AC Door Strike Operation .................................... 16
Figure 6 Dual Vestibule Connection Diagram DC Door Strike Operation .................................... 17
4
Introduction
1.0 Introduction
1.1 About the MA-485A
The MA-485A is a communications amplifier designed for communication between the IS-489
suite stations and the vestibule (lobby) panel, as well as selective door opening. It
incorporates an Automatic Level Control (ALC) circuit that provides clean, clear voice
communication in both directions. The MA-485A amplifier provides AC (buzzing) and DC
(silent) door strike action. For multiple vestibule applications, RL-401A relay units are required.
One RL-401A relay unit is required for every two vestibule used.
1.2 Contact Us
For General Inquiries, Customer Service and Technical Support you can contact us Monday to
Friday 8:00 A.M. to 5:00 P.M. E.S.T.
1.2.1 General Inquiries
Toll Free 1-888-660-4655 (North America Only)
Local 905-660-4655
Email [email protected]
1.2.2 Customer Service
Toll Free 1-888-MIRCOM5 (North America Only)
Local 905-695-3535
Toll Free Fax [phone] (North America Only)
Local Fax [phone]
Email [email protected]
1.2.3 Technical Support
Toll Free 1-888-MIRCOM5 (North America Only)
888-647-2665
International 905-647-2665
Email [email protected]
1.2.4 Website
www.mircom.com
5
Introduction
2.0 Mechanical Installation
Amplifiers and relays are normally mounted within the vestibule enclosures. Where such
enclosures are located out-doors, the amplifiers and relay unit must be installed in a dry indoor
° °
location where the ambient temperature is kept within 32 to 104 F (0 to 40 C). Do not mount
transformer closer than 12 inches to the amplifier or vestibule speaker; observe local electrical
codes. For installation of vestibule enclosures refer to instructions supplied with the
enclosures.
2.1 Vestibule Enclosure Series
• M-3000 Custom Standard Series
• M-5000 Custom Tamper Resistant Series
• K-Series Compact Modular Series
2.2 Compatible Mircom Suite Stations
• IS-401B Standard Suite Station
• IS-489 Single Gang Station
• IS-489-1 Single Gang Station with Office Call
• IS-51-3 Vandal Resistant Dual Gang Station
2.3 Compatible Mirtone Suite Stations
• IS-401 Standard Suite Station
• IS-401-1 Suite Station with Office Call
• IS-421 Dual Cone Speaker Station
• IS-51-2 Dual Gang Station
• IS-485 Single Gang Station
• IS-485-1 Single Gang Suite Station with Office Call
6
Introduction
3.0 Electrical Installation
3.1 Amplifier
• The door timing may be adjusted on the MA-485A as required, from 1 to 15 seconds.
• For connections to terminals S1 and S2, use twisted pair for wiring distance up to three
feet; otherwise use shielded twisted pair and connect the shield at the source end only.
• Use twisted pair wire from terminals 1 and 2 to the suite stations.
3.2 Door Strike
3.2.1 Silent DC Door Strike Operation
• Connect Mircom M-10/M-20 Door Strike to amplifier terminals L1 and L2 for DC (silent)
door strike operation and connect remaining terminals as shown in Figure 1.
MA-485A PS-3B
T1
18 AWG 18V
T2 120 VAC
18 AWG 8V
T3
L1 M-10/M-20
Door Strike
L2
or RL-401 (l1, L2)
L3 NC
L4 NC
A RL-401 (A)
Figure 1 Connection for Silent DC Door Strike
3.2.2 Buzzing AC Door Strike Operation
• Connect Mircom M-10/M-20 Door Strike to terminals L3 and L4 for AC (buzzing) door
strike operation Door Strike Other Than Mircom M-10/M-20
7
Introduction
3.2.3 Door Strike Other Than Mircom M-10/M-20
Connect door strike other than M-10/M-20 as shown in Figure 2. Choose transfer “A” to suit
the door strike, refer to door strike specifications below.
PS-3B
MA-485A 120 VAC
18 V
T1
T2
T3
Transf "A"
L1 NC
L2 NC
L3
L4
A NC Door
Strike
Figure 2 Connection for Door Strike Other Than M-10
3.2.4 Door Strike Electrical Requirements
Amplifier Set Up Door Strike Electrical Requirements
AC (buzzing) Door Strike with PS-3B Transformer 8-16 Volts AC, 1 Ampere maximum
DC (silent) Door Strike 2-6 Volts DC, minimum 2 ohms resistance
Other than PS-3b Transformer 4-30 Volts AC, 1 Ampere maximum
8
Introduction
4.0 Specifications
4.1 MA-485A Amplifier
• Power Input, Communication:16 VAC 0.3A or 18-28 VDC 0.2 A
• Power Input, Door Strike:8-30 VAC 1.5A or 8-30 VDC,1A
• Power Output, Communication:500 mW / 45 Ohms
• Power Output, Door Strike:3-30 VAC, 1.5A or 3-30 VDC, 1A
• Door Strike Timing:1-15 Seconds, Adjustable
4.2 PS-3B Transformer
Power Input 110-120 VAC
Power Output 8 Volts, 13 VA
16 Volts, 17 VA
24 Volts, 20 VA
4.3 Wiring Specifications
• The following conductor pairs require twisted pair wiring for distances up to three feet,
twisted shielded pair wiring for greater distances is recommended: S1 and S2, S3 and
S4, S5 and S6.
• Use adequate wire sizes in order to keep resistance of each conductor below the
following
Power Lines: T1, T2, T3, L1, L2, L3, L4, L5, L6, X1, X2, X3, X4
Communication Lines: 1, 2, 3, S1, S2, S3, S4, S5, S6
Function Lines: P, P1, P2, A, Z, Z2, Z
Table 1 Wire Chart
Distance Power Wires Communication Wires Function
(meters) (feet) (AWG) (AWG) (AWG)
50 164 #18 #22 #22
75 246 #16 #22 #22
100 328 #14 #20 #22
150 492 #14 #18 #22
200 656 #12 #18 #22
9
Introduction
5.0 Multiple Stations in a Suite
If desired, two suite stations may be installed in any suite by parallel connecting the three
common wires as well as the selective call terminals (#4) of both stations. The call tone will be
heard at both stations. Reply can be made from either station.
More than two stations may be connected in any suite, provided that the call selective wire is
connected to no more than two stations, that is, the call terminal (#4) will be left unconnected
at additional stations resulting in no audible call tone at such stations. Reply can be made from
any station.
The amplifier and relay unit are normally mounted within the lobby enclosure. When the
enclosures are located outdoors, the amplifier and relay unit must be installed in a dry location
where the ambient temperature is maintained between 0 °C and 40 °C (32 °F to 104 °F).
For installation of lobby enclosures refer to instructions supplied with enclosures.
PS-3B transformers may be mounted within the enclosures or at the main fuse panel. Care
must be taken to locate transformers at least 12 inches away from the amplifier and the lobby
microphone.
Observe local electrical codes regarding the installation of Class-2 transformers.
Suite station handsets can be mounted on single gang electrical boxes.
10