Model 914-HDE User Manual
Focal Technologies Corporation
3-8
A Moog Inc. Company
Document Number: 914-0601-00 Rev. 4.0
3.5 Ethernet Port
The 914-HDE provides an un-switched, low latency 10/100/1000 BASE-T(X) Ethernet link through the optical
port. Ethernet frames are guaranteed across the optical link in less than 2 frame times (frame size x Ethernet
link speed) plus a typical fiber link latency of 5 ns/m. The part is default configured for 10/100 BASE-T(X) in the
L1 version, and 10/100/1000 BASE-T(X) for M1 and H1 versions. Auto-negotiate settings can be accessed via
the Model 914 Diagnostic GUI. A standard 8P8C (RJ45) modular jack provides the mechanical interface for the
Ethernet port. The port is auto MDI/MDIX capable, and supports jumbo frames up to 9000 bytes.
An optional “Link Fault Pass Through” can be enabled on firmware revisions B1 or newer. This feature will
disconnect the Ethernet link if the far side is not linked. Therefore the system must be linked on both sides for
the Ethernet link to be established. Enabling or disabling this feature is done through the diagnostic GUI.
Figure 3-8: Ethernet Port
Integrated LEDs show Ethernet Link Status as shown in Table 5.
Table 5: Ethernet LEDs
LED Status
Function
Green
Yellow
OFF
OFF
No Link
ON
OFF
Linked at either 1000 BASE-T or 10 BASE-T
ON
ON
Linked at 100 BASE-TX
FLASHING
OFF
Link Activity at either 1000 BASE-T or 10 BASE-T
FLASHING
ON
Link Activity at 100 BASE-TX
