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Main / Optical interfaces / PTRS-7262
| PTRS-7262-(CW)## series HDSDI/SDI/ASI optical transponders |
PTRS-7262(CW) optical transponders regenerate HD SDI (1.485 Gbps), SDI and ASI streams, optionally converting the optical wavelength at the output. PTRS-7262 module occupies one slot in the PROLFEX 1U/3U racks so that up to four transmitters fit into a 1U rack and up to fifteen into a 3U rack.
Features
- regenerator/repeater, wavelength transponder within CWDM band
- automatic input standard selection with manual override
- EDH (min/hour) status indication for SD SDI input standard
- signal loss indication
- signal reclocking and reshaping
- two BNC outputs after reclocking
- PAL/NTSC monitor output for SD SDI input standard
Laser wavelengths:
- PTRS-7262-1310 – 1310nm FP laser diode
- PTRS-7262-1550 – 1550nm DFB laser by request
- PTRS-7262-CW## – CWDM DFB laser, 1270~1610nm with 20nm steps (## denotes a wavelength)
Technical specifications
- Optical input
| Standard compliance |
SMPTE292M, SMPTE259M A,B,C,D; DVB/ASI |
| Number of inputs |
1, reclocked |
| Photodiode |
InGaAs/InP PIN |
| Optical sensitivity band |
1100~1650nm |
| Maximum input optical power |
-3dBm |
| Optical dynamic range |
-27 ~ -3dBm (for SDI input standard); -24 ~ -3dBm (for HD SDI input standard) |
| Optical connector type |
FC/PC |
- Optical output
| Number of outputs |
1 |
| Connector type |
FC/PC, single-mode fiber |
| Laser wavelengths |
1310±20nm FP laser (1550±20nm DFB laser by request) |
| Laser wavelengths CWDM systems |
1270~1370nm, 1430~1610nm with 20nm, DFB laser |
| Optical power |
0dBm |
- Electrical output
| Output signal standard |
as per input |
| Number of outputs |
2, reclocked |
| Return loss |
better than 12dB up to 1.5GHz |
| Amplitude |
800mV±10% |
| Connector type |
BNC |
| Signal rise/fall time |
700ps (SD SDI); 270ps (HD SDI) |
| Jitter |
less than 0.2UI |
- PAL/NTSC monitor output
| Number out outputs |
1 |
| Output impedance |
75 Ohm |
| Amplitude |
1V at 75 Ohm |
| Phase and/or amplitude error |
less than 3% |
| Frequency response |
2% up to 5.5MHz |
| Connector type |
BNC |
General description
PTRS-7262(CW) simplified schematics:
An input optical signal is detected and converted to electrical form. A normalised signal drives the laser at the optical output and is available at two electrical outputs. A serial stream, in case of SDI input standard, is decoded to obtain the EDH status and to extract video for monitor output in PAL or NTSC standards.
PTRS-7262 rear panel:
Controls and indicators
PTRS-7262 frontal panel:
The operation mode is selected by toggling the MODE button, the editing is done by pressing the UP and DOWN buttons.
The editable modes are:
- AUTO – automatic input standard selection
- FORCE – manual input standard selection
- RESET EDH – resets the EDH error counter
The indicators:
- LOSS – lit if there is no input signal
- EDH DET – lit when an input signal contains valid EDH packets
- EDH MIN/HOUR – lit if an EDH error was detected whithin the last minute/hour interval
- ASI, SDI, HD – an input standard indication
The remote control and management from a PC
All the “PROFLEX” modules are remote controllable from a PC. This facility is available if a rack is fitted with a CPU module (ordered separately). |
