Another alternative for short reaches within the same location is to use a single mode patch cable.
Cisco fiber optic patch cable.
Cisco mode conditioning patch cord for 62 5 um fiber with lc connectors.
1000base zx sfp for long reach single mode fibers.
48 fiber 4 port mtp adapter panel.
Mtp pinned to mtp pinless om3 jumper with type b polarity.
Compared to dac due to its flexibility the fiber patch cable plays an important role in fiber optic data transmission especially the data transmission between the switches and equipment and now is widely used in both telecommunication and data communications.
A 5 db inline optical attenuator should be inserted between the fiber optic cable and the receiving port on the sfp at each end of the link for back to back connectivity.
This approach will require a mtp to lc harness assembly to make the connection from the termination patch field to the cisco.
The 1000base zx sfp operates on standard single mode fiber optic link spans of up to approximately 70 km in length.
This example uses a 24 fiber trunk cable but trunk cables can have 12 to 144 fiber at any length.
There will be no saturation over single mode fiber.
Please note the 10gbase lrm devices can reach up to 300m over single mode fiber as per cisco specifications.