Dual 1x2 Fiber Optic Switch

The dual 1x2 optical switch is equivalent to two single 1x2 fiber optic switches in one switch that change state together (they cannot be switched independently).

A lower cost custom dual 1x2 switch has an extra optical path in state 1. This extra path is often not an issue and may even be beneficial as a loopback.

Optical Connectivity

The following diagrams show the optical connections for the 2 states. The numbers identify the fiber endpoints. If looking at it as 2 single 1x2s, fibers 1, 6 and 5 make up one single 1x2 while fibers 4, 2, and 3 make up the other.

Optical Connectivity
State 1 State 2
D12C State 1 D12C State 2

Ordering Information / Common Configurations

DescriptionPart #Price
Dual Multimode 1x2 Switch D12N-M1-L-NC-1-1-5-L Add To Quote
Dual Singlemode 1x2 Switch D12N-S1-L-NC-1-1-5-L Add To Quote

To see a complete list of available options, click the Part #. Options can be changed after clicking 'Add to Quote'.

Dual 1X2 Switch Options

D12N -X1 -X2 -X3 -X4 -X5 -X6 -X7

Options
X1: Fiber Type
S1Singlemode 9/125 (Default)
Corning SMF-28 9/125 or equivalent
M1Multimode 62.5/125
M2Multimode 50/125
M3Multimode 100/140, Graded Index, NA=0.29
M4Multimode 50/125 Step Index, NA=0.22
M5Multimode 105/125 Step Index, NA=0.22
S2Singlemode HI1060
Corning HI1060 6.2/125@1060
X2: Latching
LYes (Default)
Latching switches require no steady state input power. The switch is set to state 1 or state 2 by a single pulse of 20 milliseconds or longer. Continuous current is preferable to maintain the switched state under high vibrational stress. The latching design retains its switched state during a power loss.
NNo
Non-latching switches require continuous drive current and function like a conventional relay, which may not retain state during a power loss.
X3: Connectors
NCnone (Default)
Also known as pigtailing
FCFC/PC
SCSC/PC
STST/PC
LCLC/PC
STUST/UPC
Ultra polish
DLCDuplex LC/PC
FCAFC/APC
X4: Cables
1900µm Tight Buffer (Default)
900µm tight buffered tube
X5: Cable Length
11.0 Meter (Default)
20.5 Meter
32.0 Meters
X6: Voltage
55V, 100 ohm (Default)
Requires a minimum of 4.2V. Low voltages will result in reduced switch speed.
33V, 35 ohm
Requires a minimum of 2.5V. Low voltages will result in reduced switch speed.
5H5V, 50 ohm
Requires a minimum of 4.2V. Low voltages will result in reduced switch speed.
5T5V, 33 ohm
Requires a minimum of 4.2V. Low voltages will result in reduced switch speed.
X7: Loss
LLow (Default)
Typical 0.25 dB loss for singlemode, 0.05-0.10 dB loss for multimode. Utilizes a discrete amount of matching fluid at the gap.
NNormal
Typical 0.7 dB loss for singlemode, 0.5 dB loss for multimode. Features an air gap.

More Information

For more information, see our Switch Overview and Specifications for information that applies to all our switch products.