Black Box LGC5134A-R4 CP 1000 Converter

The Layer 1 Gigabit Media Converter has Link Integrity features that prevent “silent failures” on your network. What this means is, that the converter identifies lost cable links. No more time wasted searching for them! A link can be checked by physically observing the status of the media converter’s Link LED.
One feature, FiberAlert™, signals to you when a fault occurs on one fiber strand and the link is, in turn, incapable of carrying bidirectional communications between two fibre devices. If a strand isn’t available, and you have FiberAlert enabled, the device at the receiver end notes the loss of the link and stops transmitting data until it receives a signal or link pulse. Essentially, with FiberAlert, the link status of one end is mirrored at the opposite end. This means that the link status can be seen at both ends through the respective Link LEDs, thus helping you to identify and isolate faults anywhere in the fibre loop. FiberAlert works even if the fibre devices are separated by great distances.
LinkLoss™ is a feature that‘s similar to FiberAlert in that faults on one port are mirrored on the other. But in the case of LinkLoss, a fault on the fibre port is mirrored to an Ethernet twisted-pair port rather than another fibre port. So if the fibre link is lost at the converter, the converter disables the twisted-pair Link LED. With LinkLoss enabled, the link status of the fibre segment will always be reflected by the twisted-pair segment so you’re informed quickly of fibre problems.
LEDs show activity, signal alerts all selectable features on the Layer 1 Gigabit Media Converter are externally accessible, and each port includes diagnostic LEDs for easy monitoring of activity on both connected cable segments. In all, the box has seven LEDs on its faceplate—four to the right of the shielded RJ-45 UTP jack and three to the right of the fibre optic SC connectors. The first set of LEDs signal: when data is detected on the twisted-pair port, when you establish a twisted-pair link, when it’s operating in full-duplex mode, and when the unit has power. The second LED set informs you: when the converter detects data on the fibre port, when you establish a fibre link, and when FiberAlert is enabled. 

Standards — IEEE802.3ab 1000BASE-T, IEEE802.3z 1000BASE-SX/1000BASE-LX

Distance (Maximum) —
LGC5134A-R4: 220 m;
LGC5135A-R4: 40 km;
LGC5137A-R2: 15 km;
LGC5138A-R2: 70 km

Connectors — (1) RJ-45, (1) pair SC

Indicators — LEDs: (1) Power, (1) FX Receive, (1) TX Link, (1) FiberAlert, (1) FX Link

Power — 100/240 ± 10% VAC, 50/60 Hz, internal, autosensing

Size — 3.8H x 11.7W x 11.2D cm