evertz 7700 Manual page 8

7700 MultiFrame Manual
7700DA4-SLKE(-HD) HD/SD-SDI StreamLINK® MPEG-2/H.264 Encoder over IP
The maximum cable run between the downstream keyer and the supporting hub is 300 ft (90 m). The
maximum combined cable run between any two end points (i.e. downstream keyer and PC/laptop via
network hub) is 675 feet (205 m).
Devices on the Ethernet network continually monitor the receive data path for activity as a means of
checking that the link is working correctly. When the network is idle, the devices also send a link test
signal to one another to verify link integrity. The downstream keyer rear panel is fitted with two LEDs to
monitor the Ethernet connection.
PRES: This LED is ON when a 100Base-TX link is last detected. The LED is OFF when a 10Base-T
link is last detected. Upon power-up the LED is OFF as the last detected rate is not known
and therefore defaults to the 10Base-T state until rate detection is completed.
LN/ACT: This dual purpose Green LED indicates that the 7700DA4-SLKE(-HD) has established a
valid linkage to its hub, and whether the 7700DA4-SLKE(-HD) is sending or receiving data.
This LED will be ON when the 7700DA4-SLKE(-HD) has established a good link to its
supporting hub. This gives you a good indication that the segment is wired correctly. The
LED will BLINK when the 7700DA4-SLKE(-HD) is sending or receiving data. The LED will
be OFF if there is no valid connection.
Page - 4
Revision 1.2