Jacques JEM-4 - Technical Specifications

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Document Number | JED-0492 Revision | 1.0 Page 11 of 18
TECHNICAL SPECIFICATIONS
GENERAL
Power source
PoE IEEE 802.3af, Class 0
Power consumption
12 W max.
Standby power consumption
2.4 W idle
Form Factor
Rectangular metal enclosure (DIN Rail and Eurocard mounting brackets available)
Dimensions (W x H x D)
without terminations or brackets
(116 x 55 x 32) mm
Weight
Approx. 250 g
Operating temperature
(-20 to +70) °C
Storage temperature
(-40 to +85) °C
Relative humidity
Up to 95%, not condensing
INPUTS
Number of inputs
2
Logic
Active low (3.3 V CMOS)
RELAYS
Number of relays
2
Relay contact type
Changeover (NO, NC, COM)
Relay contact rating
Max. switching voltage:
60 VDC, 30 VAC
1)
Max. switching current (per output):
2 A
Max. switching power (per output):
60 W (DC), 37.5 VA (AC)
Expected life:
min. 10
5
(30 VDC / 2 A),
min. 2 × 10
5
(30 VDC / 1 A)
AUDIO CHARACTERISTICS
Max. Speaker Output Level
(Class D Bridge mode)
2.5 W RMS into 4 ohms
Output frequency response (-3 dB)
32 Hz - 13.6 kHz
Analogue Mic Input Impedance
6.4 kΩ balanced, 3.2 kΩ single-ended
Max. Analogue Balanced Mic Input Level
(AIN +, AIN -)
-20 dBu (220 mV p-p)
Max. Analogue Single-ended Mic Input Level
(AIN+, GND)
-20 dBu (220 mV p-p)
Analogue Mic Input frequency response (-3 dB)
15.9 Hz - 15.9 kHz
Audio codecs
Opus, G.711 A-law, G.711 µ-law, G.722, Jacques PCM
EXTERNAL CONNECTIONS
Ethernet / Power
1 x RJ45 port for Ethernet data and PoE (10/100/1000 Mbit/s)
Diagnostic Port
1 x Micro AB USB port for factory programming and diagnostics purpose only
Audio Input
1 x 3-way terminal block plug, 3.81 mm pitch
Audio Output
1 x 3-way terminal block plug, 3.81 mm pitch
Relay contacts
1 x 6-way terminal block plug, 3.81 mm pitch
CABLING
Ethernet
4 pair UTP Cat-5/5e/6, 24 AWG multi-strand conductors. T568A wiring scheme.
Relay contacts
To suit load and cable length 1.5mm
2
max.
Balanced Audio
Screened cable (single pair)
Single Ended Audio
Screened cable
Inputs
To suit load and cable length 1.5mm
2
max.