Technical information

Page 21
The AUTOCALL OXA-502RM module provides a
form C relay contact for annunciation and auxiliary
control purposes with the AUTOCALL TFX series
fire alarm system. Both are monitored and
controlled as an addressable device on an
AUTOCALL TFX system signalling line circuit. The
relay contact may be programmed to operate in
conjunction with any single or group of input
events.
Each relay monitor module uses one of 126
available addresses on the AUTOCALL TFX
signalling circuit. It responds to regular polls from
the control panel and reports its type and status. A
flashing LED indicates that the module is in
communication with the control panel. Up to 99
modules can be placed on an individual circuit.
The OXA-502RM is an addressable field module
and is provided with an attractive plastic cover
with eggshell finish. The status LED is visible
through the plastic cover.
Features
. Provides one Form C programmable relay
contact
. Monitored and controlled from a signalling line
circuit (addressable loop)
. Powered by signalling line circuit. No external
power
. LED indicates relay operation
. High EMF/RFI noise immunity
Listings & Approvals
. UL Listed: File No. S2561
. CSFM No. 7300-1493:152
. MEA No. 415-92-E Vol. VI
. FM ID No. OB2A9.AY
Technical Specification
Dimensions: 113H x 113W x 33D mm
Operating Temp.: 0
o
C to +50
o
C
Operating Humidity: 85% (Non Condensing)
Relay Contact Rating: 2A @ 24Vd.c, 0.6A @
120Va.c.
Addressable Loop Current:
Standby Current: 0.18mA
Alarm Current: 0.18mA
Cover Material: Polycarbonate ABS alloy
Product Code
976258
TFX OXA-502RM Addressable relay module
complete with US double gang mounting plate
OXA-502RM - Addressable Relay Module
The Multi Detector Monitor Module (MDM521)
connects zones of conventional 24Vd.c. detectors
and interfaces them to the AUTOCALL TFX series
fire alarm system. The MDM521 provides eight
Style B, Class B zones.
The Multi Detector Monitor Module fully monitors
each initiating circuit of conventional 24Vd.c.
detectors and signals the control panel upon
alarm, open circuit fault, or power supply fault.
Each zone reports as a single address to the
AUTOCALL TFX series control panel, however, the
detectors in these conventional zones are not
individually addressable.
The module is compatible with 2-wire or 4-wire,
UL listed, low voltage, conventional, point type
detectors or normally open contact initiating
devices. Up to 30 detectors may be connected to
each initiating circuit, depending upon the specific
detector used.
Each zone on the MDM521 has a latching, red
LED to provide indication of an alarm condition.
Resettable 24Vd.c. is provided for using four wire
detectors.
Features
. Supervises and monitors two-wire or 4-wire
smoke detectors
. Resets detectors on command from control
panel
. Eight Style B initiating circuits
. Contains LEDs to display alarm status
Listings & Approvals
. UL Listed; File No. S2561
. CSFM No. 7165-1493:147
7170-1493:167
7300-1493:152
. MEA No. 415-92-E, Vol. IX
Product Code
976375
TFX MDM/521 Addressable multi way
conventional detection zone interface for 1-8
zones
Multi Detector Monitor Module
The AUTOCALL 506SDA notification appliance
modules is used to activate notification appliances
in response to a command sent from the fire
control panel.
The 506SDA works in conjunction with the
AUTOCALL TFX series fire alarm system, and
CONSYS Issue 3.0 and above.
The notification appliance circuit is supervised
and may be configured as an NFPA 72 Style Z or
Style Y circuit. The AUTOCALL 506SDA may be
powered from either an audio source or a
separate power supply that is UL listed for fire
signalling applications.
When the 506SDA is used with the UL listed RPS-
424 power supply (910683), or any other power
limited input source that is UL listed for fire
signalling applications, the output is power
limited.
The 506SDA will not operate into a short circuit
fault condition. This ensures the operation of all
other devices during an alarm condition including
other 506SDAs.
The 506SDA is an addressable field module and is
provided with an attractive plastic cover with egg-
shell finish. An LED is visible through an opening
in the plastic cover.
Features
. Provides a Style Y or Style Z, audio or d.c.,
notification appliance circuit
. LED annunciation at each device for normal,
activated and trouble conditions
. Supervises 24Vd.c. appliance power without
the need for a supervisory relay
. 2 Amp output rating
. Silenceable and non-silenceable operation
. High EMF/RFI noise immunity
. Will not operate into a short circuit fault
. Plug-in power limiting option
Listing & Approvals
. UL Category UOXX, File No. S374
. CSFM No. 7165-1493:147
7300-1493:152
7170-1493:167
. MEA No. 415-92-E Vol. XI
Technical Specification
Dimensions: 112.5H x 112.5W x 31D mm
Operating Temp.: 0 to +50
o
C
Operating Humidity: 85% Non-Condensing
Notification Circuit Rating:
2.0Amp Max., 24Vd.c.
50 Watts, 25VRMS audio
50 Watts, 70VRMS audio
Addressable Loop Current:
Standby Current: 0.35mA
Alarm Current: 0.35mA
External 24Vd.c. Power: Any UL listed supply,
compatible with the connected notification
appliances
Standby Current: 0.08mA
Alarm Current: 0.08mA
(Plus current used by connected
notification appliances)
Cover Material: Polycarbonate ABS Alloy
Product Codes
976378
TFX 506SDA Addressable sounder/notification
device output module complete with US double
gang mounting plate. Used for switching sounder
and speaker circuits
976250
Spare TFX 27K 1W Resistors for use with
505/6SDA
910683
TFX Spare dual voltage RPS-424 power
supply/charger used on all TFX panels
Notification Appliance Module
976378