Hardware Interface Comparison Of Ex With Other 3300 Icp Controllers - Mitel 3300 ICP Hardware Technical Reference Manual

C 4
HAPTER
Hardware Interface Comparison of EX with other 3300 ICP
Controllers
The following table provides a comparison of the Hardware interface specification for an EX Controller
and a 3300 ICP Controller:
Hardware Interface
Specification
Loop feed type
Operating loop limit
DC leakage resistance
Ring load capability
Ringing voltage open circuit
Ringing range
Ringing type
Ringing frequency
Message-waiting voltage
Message-waiting load capability
Message-waiting cadence
H I
ARDWARE NTERFACE
FXS Card on an EX Controller
Constant current
For 4-FXS-LP: Specification
•
at 2000 m loop length, with a
total DC loop impedance =
1200 Ω max (but need to
reduce to 3 REN)
For non-LP 4- FXS: Specifi-
•
cation at 450 m loop length
(loop impedance not speci-
fied)
Not specified
4 REN
45 Vrms
Not specified
Balance with DC bias, balance
without DC bias, unbalance;
sinusoidal or trapezoidal:
Balance with DC bias,
sinusoidal
Programmable, but linked to the
configured Country. Typically
between 20 and 50 Hz
For 4-FXS-LP: 115 Vdc
•
For non-LP 4-FXS: 80 Vdc
•
Not specified
Not specified
C EX
OMPARISON OF WITH OTHER
ONS card on a 3300 ICP
Controller
Constant current at 25 mA
1200 Ω for 2 REN, 900 Ω for 3
REN
10 kΩ
2 REN (equivalent to 3500 Ω in
R + C combination with C not
exceeding 10 uF)
55 Vrms with 20 Vdc bias
(except 63 Vrms with 10 Vdc
bias for China)
Operating loop limit, minimum
40 Vrms across 2 REN load
Balanced ringing, sinusoidal
Fixed for specific country
Compatible with 90 V nominal
neon lamps, (strike voltage <
110 V)
5000 Ω
Fixed, nominally 500 ms on, 1.5
s off
3300 ICP C
ONTROLLERS
S
PECIFICATIONS
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