The OP+SMT modules provide transport of SD-SDI/DVB-ASI digital video signals over fiber using time division multiplexing (TDM) technology. These modules are capable of transporting up to four SD-SDI/DVB-ASI signals over a single optical fiber. Occupying two slots within the 6800+™ frame, this solution allows for up to 40 independent SD-SDI/DVB-ASI signals in a single 2RU frame.
A pair of OP+SMT/OP+SDR modules can transport four SD-SDI/DVB-ASI signals.
Fiber optic transmitters are available in both 1310 nm FP and 16 CWDM DFB wavelengths. Fiber optic receivers are available in both PIN (standard) and APD (high-sensitivity) options.
Block Diagrams
OP+SMT

Back Modules
Modules are used in 6800+ frames with the following double-slot back connectors:
| OP+SMT |
![]() Note: Connectors IN 5 to IN 8 and TX2 are NOT used in this product |
Specifications and designs are subject to change without notice.
| Optical Outputs | |
| Number of Outputs | 1 |
| Wavelengths (nm) | 1310 FP
1270, 1290, 1310, 1330, 1350, 1370, 1430, 1450, 1470, 1490, 1520, 1530, 1550, 1570, 1590, 1610 CWDM |
| Connector | SC/PC per IEC 61754-4-1
ST/PC (optional) FC/PC (optional) |
| Output Power | -7 dBm ±1 dBm FP
0 dBm ±2 dBm CWDM |
| Extinction Ratio | 8 dB typical |
| Electrical Inputs | |
| Number of Inputs | 4 |
| Signal Type | HD-SDI, SD-SDI, SDTI, DVB-ASI |
| Connector | BNC per IEC 169-8 |
| Impedance | 75 ohms |
| Return Loss | >18 dB 5 MHz to 1.5 GHz |
| Max Signal Level | 800 mV pk-pk 10% |
| Cable EQ | 0 to 350 m for SD
0 to 140 m for HD |
| Power and Temperature | |
| Operating Temperature | 0-45 degrees C |
| Power Consumption | <10 W |
| Start Up Time | <5 sec |
| OP+SMT+13D | 4-channel SD, TDM fiber transmitter, 1310 nm FP, double-slot SC-type rear connector |
| OP+SMT+CxxD* | 4-channel SD, TDM fiber transmitter, CWDM, double-slot SC-type rear connector |
| Connector Options | |
| OP+OPT+ST | OPTO+ -ST connector option for OPTO+ fiber modules |
| OP+OPT+FC | OPTO+ -FC connector option for OPTO+ fiber modules |
| Compatible with the FR6822+QXFE frame | |
| Cable Options | |
| OP+CBL+1M-SCPC | Single-mode fiber cable, 1 meter, SC/PC male termination |
| OP+CBL+1M-STPC | Single-mode fiber cable, 1 meter, ST/PC male termination |
| OP+CBL+5M-SCPC | Single-mode fiber cable, 5 meter, SC/PC male termination |
| OP+CBL+5M-STPC | Single-mode fiber cable, 5 meter, ST/PC male termination |
| *CWDM Wavelength Selection Table replace "xx" with wavelength below | |||
| “Lower Band” Wavelengths | “Upper Band” Wavelengths | ||
| xx | Wavelength (nm) | xx | Wavelength (nm) |
| 27 | 1270 | 47 | 1470 |
| 29 | 1290 | 49 | 1490 |
| 31 | 1310 | 51 | 1510 |
| 33 | 1330 | 53 | 1530 |
| 35 | 1350 | 55 | 1550 |
| 37 | 1370 | 57 | 1570 |
| 43 | 1430 | 59 | 1590 |
| 45 | 1450 | 61 | 1610 |