Appendix 1: Specifications
40-400-00013, Rev. C
Page 29
Appendix
1:
Specifications
Polling Controller
Unit uses 24 VDC (nominal) power.
Maximum
current
draw
=
125
mA.
Single units use UL/CSA-recognized wall mount power supply.
Power Requirements
Units installed in UM-112-801 Polling Controller Carrier can use its
Internal 120 VAC-24 VDC power supply. The carrier houses up to 8
units.
Internal power fuse in each unit (not user replaceable).
Incoming Loop Hold Circuit:
Incoming loop hold circuit in unit has DC resistance of approximately
Voltage vs. Loop Current
240 ohms.
Loop Current On-Hook/Off-Hook
Unit detects off-hook when loop current is
≥
mA.
Detection
Unit detects on-hook when loop current is
≤
6 mA.
Local Battery Feed On-Hook Voltage
Unit receives on-hook battery feed from central office.
Off-Hook Local Battery Short Circuit Loop
Current
30
mA
maximum
Watchdog Timer/Low Supply Voltage
Provide in unit. If the microcontroller does not toggle the watchdog
Detector
timer for 150 ms, the microcontroller is reset. When on-card 5 volt
Supply is
≤
4.5 volts, the controller is held reset. Normal phone service
is not affected by reset and exit from reset conditions.
DTMF Transmit Level
-10 dBm into 900 ohm termination (combined level).
Shall not exceed -9 dB with respect to 1mW when averaged over any
3-second period.
Dimensions
1.53” H x 5.06” W x 5.30” D
Indicator Lights
Green power and status indicator.
Environmental Specifications
Operating temperature
0 to 50 degrees C
Short-term storage temperature
-40 to +60 degrees C
Maximum relative humidity
90%
(non-condensing)
Electrostatic discharge immunity
Units will pass IEC801.2 level 4 ESD test with no permanent damage.
Vibration and shock
Units will pass vibration testing per 47 CFR 68.302 unpackaged. Units
will also pass shock for normally customer-carried equipment under
the
same
section.
(These
tests
are part of the testing specified in the
“FCC
Part
68
Compliance”
section.)
Regulatory Compliance
Unit meets requirements of:
Safety
United States
UL 1459
Canada
CSA
C22.2
No.
225-M90
EMC
United States
FCC Part 15, Class A
Telecom
United States
FCC Part 68
Certification
Number:
AHHUSA-73266-MA-E
Canada
Industry
Canada
CS-03
Registration
Number:
344
4919
A
FCC and Industry Canada REN
1.0B