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Main / Optical interfaces / POTM-7203
| POTM-7203 3G/HD/SD SDI/DVB-ASI optical transmitters with auxiliary HDMI output |
PROFLEX™ POTM-7203 series 3G/HD/SD SDI/DVB-ASI optical transmitters accept the 3G/HD/SD SDI/DVB-ASI signal to send over the single-mode optical fiber.
The optical output of POTM-7203 is based on the hot-swappable SFP module with the TX power monitoring facility.
The POTM-7203 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.
The POTM-7203 transmitter is WDM/CWDM/single-signal compatible with one optical and two main electrical outputs.
The POTM-7203 is featuring the monitoring HDMI output with the OSD of the bar-graph audio level meters (quasi-peak and VU).
POTM-7203 rear panel:
POTM-7203 simplified schematic diagram:
POTM-7203 accepts the electrical 3G/HD/SD SDI/DVB-ASI signal on it's automatic cable equalizer, optionally reclocks it, the copy of input signal is available in electrical form. The signal is processed by a video/audio processor. The video/audio processor deembedds the audio data streams. The audio may be monitored at the analog output.
Features:
- 3G-A,B/HD/SD SDI/DVB-ASI compliance
- input signal standard autodetection
- electrical (3G/HD/SD SDI/DVB-ASI and HDMI) and optical outputs are available simultaneously
- hot-swappable SFP module as optical output device
- realtime optical TX power monitoring, laser wavelength diagnostics
- automatic cable equalizer
- signal loss indicator
- EDH/CRC status indicators
- SMPTE sync word errors (DVB-ASI only)
- user configurable reclocked or raw SDI/DVB-ASI optical and electrical outputs
- automatic detection and indication of an embedded audio
- audio group selection for the OSD bargraph audio level meter
- two 4-channel bargraph audio level meters (quazi-peak and UV) OSD on HDMI monitor output
- dBU or dBFS user-selectable scale with adjustable reference level
- 3G Level B only: stream#1 or stream#2 selection for monitoring on HDMI output
- compatibility with a single-signal, WDM and CWDM optical systems
Technical specifications
- Inputs
- SDI/DVB-ASI
| Standard compliance |
SMPTE 425M |
3G level A, B 4:2:2 |
| 3G 4:4:4 |
| SMPTE 274M (HD SDI) |
1920*1080 |
| SMPTE 296M (HD SDI) |
1280*750 |
| SMPTE 295M (HD SDI) |
1920*1080 |
| SMPTE 260M (HD SDI) |
1920*1035 |
| SMPTE 259M (SD SDI) |
720*576/50i |
| 720*480/60i |
| DVB-ASI |
| input impedance and connector type |
75 Ohm, BNC |
| automatic cable equalizer |
up to 100 meters of 8281 or similar cable |
- Outputs
POTM-7203 controls and indicators:
The indicators:
- LOSS - lit when SDI input is lost
- EDH/CRC/ASI ERROR MIN/HOUR - lit if two or more SDI EDH, 3G/HD SDI CRC or ASI errors were detected within one hour/minute interval
- TX FAULT - lit when a laser is at fault (TX power is less than -3dBm) or no SFP detected
- ASI - lit when an input signal is recognized as ASI
- EDH DET - lit when an input SDI signal contains the EDH packets
- AUD DET - lit when an input 3G/HD/SD SDI has the embedded audio
- the main graphical display shows the current parameter value. Contents is organized as twelve pages scrollable by the MODE button
The MODE button toggles through all the modes, the UP and DOWN buttons edit them.
Configuring the POTM-7203 transmitter
- the 1st page:
- upper line: input signal standard and embedded audio indication
- for 3G HD SDI the possible values are:
- 3G-A: 1080p/50; 1080p/59.94; 1080p/60; 1080p/24; 1080p/23.98; 1080I/50; 1080I/59.94; 1080I/60; 720p/50; 720p/60; 720p/59.94; 720p/25; 720p/24; 720p/23.98
- 3G-B: 1080i/50; 1080i/60; 1080i/50/94 (are indicated as 3G-B 1080/50, 60 and 59.94 respectively)
1080PsF/25; 1080PsF/30; 1080PsF/29.94 (are indicated as 3G-B 1080/50, 60 and 59.94 respectively)
1080p/30; 1080p/29.97; 1080p/25; 1080p/24; 1080p/23.98; 1080PsF/24; 1080PsF/23.98
- for HD SDI the possible values are:
1080i/50; 1080i/60; 1080i/59.94; 1080p/25; 1080p/25-EM; 1080p/30; 1080p/29.97; 1080p/24; 1080p/24-EM; 1080p/23.98; 1080p/23.98-EM;
1080PsF/25-EM; 1080PsF/24; 1080PsF/24-EM; 1080PsF/23.98; 1080PsF/23.98-EM; 1920x1035i/59.94
720p/50; 720p/50-EM; 720p/60; 720p/60-EM; 720p/59.94; 720p/59.94-EM; 720p/25; 720p/25-EM; 720p/30; 720p/30-EM; 720p/29.97; 720p/29.97-EM;
720p/24; 720p/24-EM; 720p/23.98; 720p/23.98-EM
- for SD SDI the possible values are:
625i/50; 525i/59.9
- lower line: embedded audio presence
- a number in a bracket denotes an audio group detected, for example: GR[1][2][3][4] all four groups have embedded audio, GR[1][-][-][-] group #1 only has embedded audio
- the 2nd page: output optical power indication
- upper line: wavelength, for example - WL 1550 nm
- lower line: output optical power level expressed in dBm, for example: TX pwr 2.7dBm
- the 3rd page: MON SELECT, audio channel pair selection for monitoring
- Note: the 3G/HD/SD SDI may embed up to eight channel pairs organized as four groups. Group #1 contains channel pairs #1/2 and #3/4, group #2 contains channel pairs #5/6 and #7/8, roup #3 contains channel pairs #9/10 and #11/12, roup #4 contains channel pairs #13/14 and #15/16 respectively. Only the preselected groups are monitorable, see the IND 1 ASSIGN and IND 2 ASSIGN menu entries
- the 4th page: MON VOLUME, audio monitoring level adjustment
- the headphone output level is adjustable in the ±6dB range
- the 5th page: VUMETER 1, the first bargraph OSD meter ON/OFF
- the 6th page: IND 1 ASSIGN, audio group selection for the first bargraph OSD level meter
- the possible values are GROUP 1, GROUP 2, GROUP 3 and GROUP 4
- the 7th page: IND 1 POS, the first bargraph OSD level meter horizontal position adjustment
- the 8th page: VUMETER 2, the second bargraph OSD meter ON/OFF
- the 9th page: IND 2 ASSIGN, audio group selection for the second bargraph OSD level meter
- the possible values are GROUP 1, GROUP 2, GROUP 3 and GROUP 4
- the 10th page: IND 2 POS, the second bargraph OSD level meter horizontal position adjustment
- the 11th page: VU METER SCALE selection
- DBFS: EBU alingment, 0dBFS corresponds to +18dBU
- DBU: quazi-analog, 0dBU corresponds to 0,775Vrms
- the 12th page: VU REF DBFS, the DBFS scale reference level setting
- the possible values are 0, -1, -2, -3, -4, -5, -6, -7, -8, -9, -10, -12, -14, -16, -18, -20, -22, -24, -26, -30 DBFS
- the 13th page: VU REF DBU, the DBU scale reference level setting
- the possible values are +9, +8, +7, +6, +5, +4, +3, +2, +1, 0, -1, -2, -3, -4, -5, -6, -8 -10, -12, -14, -16 DBU
- the 14th page: RECLOCKING, selection of "raw" or reclocked/reshaped signal at the electrical 3G/HD/SD SDI/ASI output
- should be enabled for 3G/HD/SD SDI signals, may be disabled for ASI signals
- the 15th page: EDH RESET, press the UD or DOWN buttons to reset the error counter
- the 16th page: 3G-B Stream selection for HDMI monitoring
A 3G Level B signal contains two 1.485Gbps streams. Select Stream1 or Stream2 for monitoring.
- the 17th page: Firmware, the model and the firmware version, f.e. POTM-7203 vX.X
POTM-7203 optical transmitter provides the realtime optical power monitoring and wavelength reporting.
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).
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