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Main / ProBox series / ProBox compact modular system

Compact optical 3G/HD/SD SDI/DVB-ASI single-fiber receivers/transmitters with Ethernet support.
 

 

ProBox series multi-channel single optical fiber E/O and O/E converters to support up to eight 3G/HD/SD SDI, DVB-ASI signals, featuring two-port 100MB/1GB Ethernet switch.
Unidirectional or bidirectional CWDM in 1270~1410nm or 1470~1570nm wavelengths range. Optional upgrade port (1310nm) allows for 1260~1360nm wavelengths pass-through.

External 12V/0.4A PSU.

Weather-proof modifications available.

 

Features
Technical specifications
Available models, simplified schematics
Indicators

 

 

    Features
  • 4 channels 3G/HD/SD SDI/DVB-ASI + Ethernet RX/TX in a small case
  • 8 channels 3G/HD/SD SDI/DVB-ASI + Ethernet RX/TX (requires two ProBox devices daisy-chained via the optical upgrade port)
  • 4K video over a single fiber
  • built-in 2-port Ethernet switch
  • 18dB optical budget for 3G SDI
  • reclocking capability for 3G/HD/SD SDI signals
  • RX, TX and RX/TX combinations
  • input (optical/electrical) signal presence monitoring
  • input and output optical power monitoring

Technical specifications

  • Inputs
    • electrical 3G/HD/SD SDI, DVB-ASI
      Standard compliance SMPTE 424M (3G), SMPTE 292 (HD SDI), SMPTE 259M (SD SDI), DVB-ASI
      Input signal reclocking yes
      Return loss better than 15dB at 1.5Gbps, 10dB at 3Gbps
      Input impedance, connector type 75 Ohm, BNC
      Automatic cable equalization, (Belden 1694A or similar) 3G: up to 100m
      HD SDI: up to 150m
      SD SDI: up to 300m
    • optical 3G/HD/SD SDI, DVB-ASI
      Connector SFP/LC
      Input bitrate up to 3Gbps
      Input wavelengths 1100...1650 nm
      Optical input dynamic range -23...-3 dBm, (-28...-9 dBm with APD SFP)
  • Outputs
    • electrical 3G/HD/SD SDI, DVB-ASI
      Number of outputs, type one, reclocked, 75 Ohm BNC
      Return loss better than 10dB up to 3GHz
      Amplitude and rise/fall times 800mV, 270ps (HD SDI), 700ps (SD SDI)
      Jitter less than 0.2UI
    • optical 3G/HD/SD SDI
      Number of outputs, type one, reclocked
      Optical output power -7.5 dBm (0...+3 dBm available on request)
      Laser wavelengths 1270...1610 nm (SFP model dependent)
      Connector type SFP/LC
      common (COM) 1
      Upgrade 1310nm yes, 1
      fiber type single-mode
      built-in CWDM MUX yes
      typical distance (km) 60
      Wavelengths (nm) video+Ethernet 1470, 1490, 1510, 1530, 1550, 1570
      video only 1470, 1490, 1510, 1530
      -L index, video+ethernet 1270, 1290, 1310, 1330, 1350, 1410
      -L index, video only 1270, 1290, 1310, 1330
  • Ethernet
    • electrical I/O
      Standard compliance IEEE 802.3i 10 Base-T
      IEEE 802.3u 100 Base-T
      IEEE 802.3ab 1000 Base-TX
      Connectors two RJ45
      Cable type and length UTP-5, up to 100 m
    • optical I/O
      Standard compliance IEEE 802.3z 1000 Base-SX/LX
      Connector type SFP/LC
      MAX optical input power -3 dBm
      Input wavelengths 1270...1610 nm
      Input sensitivity -24...-3 dBm (SFP model dependent)
      Laser wavelengths 1270...1610 nm (SFP model dependent)
      Optical output power -9...+5 dBm (SFP model dependent)
  • Power supply: an external +5...+15 VDC adapter, less than 6Watts
  • Case dimensions: 160mm*100mm*30mm (L*W*H)

Available models, simplified schematics

CWDM is implemented for optical [de]multiplexing in 1470~1570nm or 1270~1410nm wavelengths ranges. Each video channel occupies one wavelength, an Ethernet channel always occupies two wavelengths. A built-in CWDM multiplexor/demultiplexor is used to combine all signals for communication via just one optical fiber.

    Legend:
  • #T - number of transmitters in a device
  • #R - number of receivers in a device
  • E - Ethernet 100/1000 capability
  • 1F - single-fiber capability
  • L - 1270~1410nm wavelengths range

Ordering example:
for site A: PBX-3T1RE1F (PBX-3T1RE1F-IP)
This device features three transmitters (3T), one receiver (1R), Ethernet support (E). Only one fiber needed (1F).
for site B: PBX-3R1TE1F (PBX-3R1TE1F-IP)
This device features three receivers (3R), one transmitter (1T), Ethernet support (E). Only one fiber needed (1F).
PBX-3T1RE1F-IP - the same device in a weather-proof case.

SDI channels QTY
#T/#R at site A
#T/#R at site B
two-port Ethernet
fibers used
1260~1360nm upgrade port
-IP index for weather-proof case
site A
site B
4
4/0
0/4
+
1
+
PBX-4TE1F
PBX-4RE1F
-
PBX-4TE1FL
PBX-4RE1FL
4/0
0/4
-
1
+
PBX-4T1F
PBX-4R1F
-
PBX-4T1FL
PBX-4R1FL
2/2
2/2
+
1
+
PBX-2T2RE1F
PBX-2R2TE1F
-
PBX-2T2RE1FL
PBX-2R2TE1FL
2/2
2/2
-
1
+
PBX-2T2R1F
PBX-2R2T1F
-
PBX-2T2R1FL
PBX-2R2T1FL
3/1
1/3
+
1
+
PBX-3T1RE1F
PBX-3R1TE1F
-
PBX-3T1RE1FL
PBX-3R1TE1FL
3/1
1/3
-
1
+
PBX-3T1R1F
PBX-3R1T1F
-
PBX-3T1R1FL
PBX-3R1T1FL
2
2/0
0/2
+
1
+
PBX-2TE1F
PBX-2RE1F
-
PBX-2TE1FL
PBX-2RE1FL
2/0
0/2
-
1
+
PBX-2T1F
PBX-2R1F
-
PBX-2T1FL
PBX-2R1FL
1/1
1/1
+
1
+
PBX-1T1RE1F
PBX-1R1TE1F
-
PBX-1T1RE1FL
PBX-1R1TE1FL
1/1
1/1
-
1
+
PBX-1T1R1F
PBX-1R1T1F
-
PBX-1T1R1FL
PBX-1R1T1FL

Simplified schematics

TX schematics.

 

RX schematics.

Indicators

  • IN1, IN2, IN3, IN4 - green, input signal is detected
  • RX fault - red, lits if no input signal is detected (input optical power drops below -25dBm)
  • TX fault - red, lits if a laser malfunction is detected (output optical power drops below a threshold)
  • OVERHEAT - red, lits if unit's internal temperature exceeds +70 °C
  • POWER - red, power OK

 

Application examples.
2019 PROFITT Ltd