Figure 4-10: Incoming Ethernet Sub-Port Example; Table 4-9: Vgpi States - evertz 7700 Manual

7700 MultiFrame Manual
7700PTX-MVP Unidirectional UMD Protocol Translator
By default, each GPI pin has an Active Low setting of n or no. The association between the GPI pin
signal, Active Low setting, and VGPI state is summarized in Table 4-9.
GPI Pin Signal
Typically, a GPI pin connects to a contact closure which is tri-stated when off and drives 0 volts when
on. For this scenario, the Active Low field should be set to yes.
4.8.1.3. Ethernet
From an incoming perspective, the Ethernet port can receive data over a maximum of four TCP ports.
These are referred to as Ethernet Sub-Ports. Thus, the 7700PTX-MVP can receive TCP data from up
to 4 different hosts – one for each Sub-Port.
An incoming Ethernet Sub-Port has the following parameters:
•
IP Address of host
•
TCP port over which data will be received by the 7700PTX-MVP
•
Type of protocol
The Ethernet Sub-Ports of the 7700PTX-MVP support the following incoming protocols:
•
None (off)
•
Up/Down Timer
•
Image Video
•
TSL
•
Buftek Crosspoint UMD
None indicates no protocol is to be received on the Sub-Port port – effectively rendering it off. Thus, in
order to enable a Sub-Port port to receive incoming data, the following parameters must be configured:
•
A protocol other than None
•
The IP address of the transmitting host
•
The TCP port to which the transmitting host is sending the data
As an example suppose we have the setup of Figure 4-10 where an Image Video console with an IP
address of 192.168.18.22 transmits data to the 7700PTX-MVP over TCP port 9800:
7700PTX-MVP - 16
Active Low Field Setting
Low
Low
High
High

Table 4-9: VGPI States

Figure 4-10: Incoming Ethernet Sub-Port Example

Revision 1.9
Virtual GPI State
n
y
n
y
Off
On
On
Off