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Enova DGX 100 Series - Overview
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Enova Digital Media Switchers - Hardware Reference Manual
Device auto-setup status is discoverable via NetLinx Studio such that Auto-setup device IP addresses reside in the
198.18.x.x space where the first "x" represents either 130 (input side) or 134 (output side) and the second "x" represents an
individual port number.
Transmitter endpoints: 198.18.30.x (where x is the input channel)
Receiver endpoints: 198.18.134.x (where x is the output channel)
Device numbering in NetLinx Studio places auto-setup devices on the input side in the range 45001 to 45999 and devices
on the output side in the range 46001 to 46999.
Link-local Fallback in DHCP Mode (IPv4 Only)
When the integrated Master’s public LAN IP addressing mode is set to DHCP, it will attempt to acquire an IPv4 address
from a DHCP server for approximately one minute after boot. If the Master does not receive a valid DHCP address in that
time (e.g. if a DHCP server is not found), it will fall back to an IPv4 address in the link-local range.
NOTE:
Link-local is not an operational mode for the Master; it is a temporary addressing scheme to permit access over the
network so that IP settings can be modified. Do not commission the Master with a link-local IP address.
The default link-local address is 169.254.x.y, where x and y are the least significant two octets of the MAC address. The
Master will first verify that this address is not taken by another device on the network. If the address is taken, the Master
uses a standard algorithm to find an available IP address in the link-local range.
When the Master is using a link-local IP address, the status light will blink once per second. If the Master’s network settings
remain in DHCP mode, it will attempt to acquire a DHCP address every five minutes until successful. After each failed
attempt to acquire a DHCP address, the Master will execute the link-local algorithm and may not fall back to the same
link-local IP address.
Wired 802.1x Support
The integrated NetLinx NX Master supports 802.1X, an IEEE Standard for Port-based Network Access Control (PNAC). The
Master acts as a supplicant (client device) to an 802.1X enabled network and presents customer-provided X.509
certificates to be allowed access to protected networks.
Support for IPv6 Network Addressing
The integrated NetLinx NX Master fully supports IPv6 network addressing. If the LAN 100/1000 port is connected to an IPv6
capable network, it will self-select an appropriate IPv6 address based on the discovered address settings of the network
to which it is attached.
The Master simultaneously supports IPv4 network addressing. This means any Master may have more than one valid IP
address: one IPv4 and one or more IPv6 addresses. When opening sockets from NetLinx or Java code, no unique
command is available to indicate that you are providing an IPv4 or IPv6 network address. As long as the provided IP
address is a valid IPv4 or IPv6 address, the Master will utilize the correct addressing protocol automatically.
ID Pushbutton
The ID Pushbutton functions performed depend on when and for how long the ID Pushbutton is pressed and held. The
integrated Master includes ID Pushbutton functionality for selecting a static or DHCP address, performing a factory default
reset, and restoring the factory firmware image (for instructions, see page 44).
Case Sensitive File System
All file names on the integrated Master are case sensitive. This includes all user files created or used within NetLinx or Java
code. If your legacy code generates an error when accessing a file, it is likely due to inconsistent use of case in the
filename.
IMPORTANT:
If you have legacy code that uses files, verify that every reference to each file is consistent with regard to
case.
USB Program Port Driver
The integrated NetLinx NX Master is configurable for communication with a PC over the switcher’s USB Program port. On
Enova DGX 100 Series Switchers, the USB Program port includes pre-loaded drivers for use with a PC running either
Windows 7 or Windows 8.
The integrated NetLinx NX Master utilizes a USB (mini-AB) Program port for configuration and programming via a
connected PC. The required USB driver installs automatically with NetLinx Studio v4.0 or later.
Because a PC COM port can only be used for a single process at a time, having a terminal window open using the COM
port assigned to that USB connection will prevent any other communication to the Master over that same USB
connection, including refreshing the OnLine Tree and transferring files. We recommend using the front control panel to
discover the IP address of the Master, modifying the IP address via the USB Program port if necessary, and then
connecting over Ethernet to the new IP address. For additional information, see page 58.
Differences in DEFINE_PROGRAM Execution
Due to differences in the underlying architecture of the integrated Master, changing variables in the DEFINE_PROGRAM
section of code can negatively impact program performance.
If you have legacy NetLinx code that does change a variable in this section, timing differences very likely will cause your
code to run slower and appear less responsive on the Master.