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SENTINEL
Surround Audio Program Monitor

Technical Specifications


Analog Inputs
Connection:
8 ch. on 25 pin female D-sub,
compatible with TASCAM 8-female cables
Format:
Balanced or Unbalanced
Input Impedance:
1 MΩ , each side to ground
Maximum Input:
+28 dBu
CMRR:
>50 dB to 2 kHz, 10Ω source imbalance
Response:
± 0.1 dB, 20 Hz to 20 kHz
S/N:
>105 dB, 20 Hz to 20 kHz
Crosstalk:
>80 dB, 20 Hz to 20 kHz

Digital I/O
Connection:
4 AES-3 inputs (8 ch.), 1 AES-3 output
on one 15 pin high density female D-sub
Input Format:
AES-3 120Ω Balanced or 75Ω Unbalanced
Sample Rate:
32 kHz to 192 kHz, each AES-3 stream asynchronous to all others
Word Width:
16 to 24 bit
Output Format:
AES-3 75Ω Unbalanced
Cables:
Unbalanced inputs use VGA to BNC cable, Balanced inputs use a custom DB15HD to
4 XLR / 1 BNC cable, not included

Digital Inputs
Connection:
1 AES-3 input selected from 4 AES-3 inputs
on one 15 pin high density female D-sub
Input Format:
AES-3 120Ω Balanced or 75Ω Unbalanced
Sample Rate:
32 kHz to 48 kHz
Word Width:
16 bit
Cables:
Unbalanced inputs use VGA to BNC cable, Balanced inputs use a custom DB15HD to
4 XLR cable, not included

Analysis
Surround Format:
5.1, 5.1 + 2, 6.1, 6.1+1, 7.1
Metering Standards:
VU, Nordic PPM, BBC PPM, EBU PPM, DIN PPM, proprietary 42, 70, 140 dB meters
Loudness:
According to ITU-R BS.1770-1

LTC Input
Format:
Balanced, AC coupled
Connection:
1 on 25 pin female D-sub
Input Impedance:
22 kΩ , each side to ground
Maximum Input:
5Vpp

Auxiliary Inputs
Format:
Unbalanced, ground referenced
Connection:
6 on 25 pin female D-sub
Input Impedance:
3 kΩ
Maximum Input:
2.55VDC Protected – clamped at 3.3 VDC

Alarm Outputs
Connection:
8 on 25 pin female D-sub
Format:
Open collector, 24V/100mA max

Network
 
Ethernet:
10 Base-T, RJ45 with status LEDs

Dimensions
 
Chassis:
1.75” H (1U) x 17” W x 7” D
(8.9 cm x 54.2 cm x 17.8 cm)

Power
 
Chassis:
24V at 0.7 A max from external adaptor
Power adaptor:
100V/120V/240V, 50/60 Hz, 18W