| Term | Meaning | Notes |
|---|---|---|
| SC | Subscriber / Standard Connector / Square Connector | |
| LC | Lucent Connector / Little Connector | |
| ST | Straight Terminus / Stick & Twist | |
| CS | Compact, ~twice as dense as LC | Some QSFP-* optics have multiple CS connectors for multiple transmitters/receivers |
| Singlemode | ||
| Multimode | ||
| Simplex | ||
| Duplex | ||
| UPC | Ultra Physical Contact/Connector | Connector and panel should be color coded blue. End of fiber core is concave |
| APC | Angle Physical Contact/Connector | Connector and panel should be color coded green. End of fiber core is diagonal |
| MU | Often referred to as "mini SC" | |
| MPO | Multi-fiber push on | See Optical: Multi-fiber Push On (MPO) |
Jumper jacket/cable color chart
| Type | Jacket color | Meaning |
|---|---|---|
| Singlemode | Yellow | Single Mode |
| Blue | Sometime used to designate polarization-maintaining fiber | |
| Multimode | Orange | Multi Mode OM1. 62.5/125 µm (micron) |
| Grey | Multi Mode OM1. (Legacy colour) | |
| Aqua | Multi Mode OM3. 10G Laser optimized 20/125 µm (micron) |
| Connector | Type | Notes |
|---|---|---|
| Jumper Singlemode LC Duplex | Standard jumper, WiscNet stocks |
 | Jumper Singlemode SC Duplex | Standard jumper, WiscNet stocks |
| Jumper Singlemode LC/LC Duplex Connector is split | Standard jumper, WiscNet stocks |
| Jumper Singlemode MU/MU Simplex | |
| Jumper Singlemode CS/CS Simplex | |
 | Jumper Multimode LC Duplex | |
 | Jumper Multimode SC Duplex | |
 | Jumper Multimode SC/SC Duplex | |
 | Jumper Multimode ST Simplex | |
 | Jumper Multimode LC/LC Duplex | |
| Panel SC UPC | |
 | Panel SC UPC | |
 | Panel LC UPC | |
 | Jumper Singlemode SC APC | WiscNet does not stock |
 | Panel APC |
