OCM 1891
9 Channel CWDM MUX/DEMUX [1270-1430nm]
The OCM 1891 is a compact CWDM passive 9 channel optical multiplexer / demultiplexer designed to send or receive up to 9 individual signals over a single fiber link. The module has an UPG (Upgrade) port to connect to the OCM 1892, which expands the capability of the modules to 18 CWDM channels
The modules can be used standalone or integrated into the optional RFR 1018 1/2 RU 19” rack frame, ideal for system installations.
Key Features
- Send / receive up to 9 channels over a single fiber
- 1270nm to 1430nm (ITU-T G.694.2)
- Passive operation (no power required)
- Combine with OCM 1892 for 18 channels
- LC/PC single mode optical connections
- Optional ½ RU 19” rack frame
Ordering Information
| UPC / EAN | Model | Description |
|---|---|---|
| 4250479318915 | OCM 1891 | 9 Channel CWDM MUX/DEMUX [1270-1430] |
| Options | ||
| 4250479310186 | RFR 1018 | 19″ 0.5RU Mounting Tray |
| 4250479323155 | LC/LC DUP | Duplex LC/LC Patch Cable |
| 4250479318182 | LC/LC SIM | Simplex LC/LC Patch Cable |
Fiber I/O
- 9 x Fiber I/O Channels
- Center Frequencies (from ITU-T-G694.2)
- 1270nm, 1290nm, 1310nm, 1330nm, 1350nm, 1370nm, 1390nm, 1410nm, 1430nm
- 1 x COM connection (multiplexed I/O)
- 1 x UPG connection (pass band connection for expansion)
- LC/PC Singlemode
Performance
- Channel insertion loss = 1.35dB (nominal) / 2.7dB (Max)
- UPG insertion loss = 1.35dB (nominal) / 2.7dB (Max)
- Polarization insertion loss = 0.2dB (Max)
- Return loss = > 45dB
- Channel Isolation = > 30dB
- Directivity = > 55dB
- Temp dependent loss <0.005dB/ºC
- Temp dependent change of wavelength = <0.003nm/ºC
- Max input power = 500mw
Power
- No power required (passive operation)
Physical Size:
- Metric:199mm x 130mm x 19mm
- Inches: 7.83” x 5.12” x 0.75”
Weight:
- 230g (8.1oz)
