AT&T System 75 8520T User Manual Page 23

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Residential UL Requirements
Table 2-l Residential UL Listings
Type of
Application
Residential
Burglary
Residential
Fire (local
alarm)
Residential
Fire plus
Burglary
Governing
UL Standard Required Auxiliary Equip
Optional Auxiliary Equip
UL1023
UL Listed Horn (Wheelock,
Two-Line Switcher (8321)
EH-EL2-WI)
Adjunct Communicator (8322)
+RF
Transmitter (ADEMCO 7620
&
488-l 2
Power Supply)
Keyswitch (ADEMCO 9789)
UL985
UL Listed Smoke Detector
Two-Line Switcher (8321)
(ESL, 445A or 445AT) plus
Adjunct Communicator (8322)
+RF
Power Supv. Relay (ESL,
Transmitter (ADEMCO 7620
&
488-l 2
204A)
Power Supply)
UL Listed Horn (Wheelock,
EH-EL2-WI)
Keyswitch (ADEMCO 9789)
UL1023,
UL Listed Smoke Detector
Two-Line Switcher (8321)
UL985
(ESL, 445A or 445AT) plus
Adjunct Communicator (8322)
+RF
Power Supv. Relay (ESL,
Transmitter (ADEMCO 7620
&
488-l 2
204A)
Power Supply)
UL Listed Horn (Wheelock,
EH-EL2-WI)
Keyswitch (ADEMCO (9789)
Residential
UL1637
Wireless Rcvr Module (8325)
Medical
+Universal (8240)
Applicable
UL Listing Requirements (General)
Standby operation:
4 hours minimum
Alarm Operation:
5 minutes minimum at end of standby period
Standby Current Consumption*:
475 milliamperes maximum
Alarm Current Consumption*:
1.475 amperes maximum (400 ma Aux, 75 ma Interruptible Aux, 1 .O amp total sirens)
Operating Voltage Range*:
9 to 15 volts DC (10 to 15 VDC for Aux Power)
Keypads:
2 minimum, for supervision requirements; 4 maximum
CCU Location:
Must be inside premises, not exposed to the elements or to attack.
Operating Voltages:
All devices powered from the CCU Aux Pwr, Siren or Interruptible Power.
*
From Aux Pwr (Aux only has IO-15VDC available), Interruptible Aux Pwr, and Sirens 1 and 2 outputs.
Notes for Residential (local) Fire (UL#985), Burglary (UL#1023), and Medical
WL#1637)
1.
2.
3.
4.
5.
6.
7.
Fire: Do not use green wire (earth) grounding of the CCU.
Fire: Use AT&T End-Of-Line terminating resistors (part
#846
626 109) on all UL hard-wired fire zones.
Fire, Burglary, Medical: At least two keypads must be used (only one is required to be Display/ Control, others may be
Control keypads). This allows keypad supervision, which is required since keypads are devices which can be used to
enter alarms.
Fire, Burglary: X-10 devices may not be used as primary indicating devices-use as secondary devices only.
Fire and Burglary: listings require at least 4 hours of standby (non-alarm) operating time, followed by capability for at
least 5 minutes of alarm time. This limits the allowable configuration to 4 keypads plus 475
mA
current to non-integral
system devices (aux power; aux interruptible power; and 1
.O
Amperes for sirens 1 and 2, maximum total for 1 or 2
sirens).
Fire, Burglary, Medical: Use UL listed peripheral devices named in the table only, using unlisted devices will prevent
the system from qualifying for the UL listing.
For emergency zones, use only UL Listed medical signaling initiation
devices.
Non-UL devices may be added (to non-UL functions in the systems) as long as these devices do not in any way affect
the UL Listed functions of the system. Of course these devices and their functions must not be considered as part of
the UL Listed functions of the system.
8.
Only 75 ma available from interruptible Aux Power; see end of chapter to wire more than 2 hardwire sensors (non UL).
9.
The ADEMCO 7620 has not been investigated for use in UL Listed applications.
AT&T Security System 8300 Installer’s Manual
2-5
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