Copyright 2017 Positron, Inc.
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2.3.2 Type 1b: 720930xxx TeleLite POE Ethernet Card
Located at CFJ,
placed at the 300V point of the Substation’s GPR Contour
(Note: Default DIP Switch Settings are shown in Figure 11)
A. If the 720930xxx POE Ethernet card is to be powered by a local supply of -48Vdc, then the
two on-board Power Option Jumpers should be set in the LOCAL PWR position. (Figure 10)
B. If the CFJ is located as mentioned above, it is highly likely that the TeleLite 720930xxx
Ethernet card will be powered using POE and the Power Option Jumpers should be set to the
remote power (RMT PWR) positions unless local a -48Vdc source is used instead. (Figure 10)
C.
If the 720930xxx TeleLite POE card is placed as a CFJ at the 300V point of the Substation’s
GPR Contour, and then is feeding Ethernet via fiber to an OEI located at a generation or
distribution substation, such as at a solar farm, the Master and Slave switches should be set
so that the 720930xxx card is set as Slave, and the companion 720920xxx card located at the
OEI (Optical Electrical Interface) is set as Master. If the OEI at the solar farm is the manned
location and set as Master, the alarms will report to the 720920xxx at the OEI from the
720930xxx at the CFJ. (Figure 12)
D. If this is a Type 1 Ethernet deployment as described in Section 1.2.1, the 2
nd
DIP switch
should be set to the left. (Figure 12)
E. If the Ethernet modem that is feeding the TeleLite modem, or is being fed by the TeleLite
Ethernet cards is MDIX enabled
(2)
, then the MDIX feature of the TeleLite Ethernet card should
be disabled. If the associated modems are NOT MDIX enabled, then this DIP switch should be
enabled to remove any need for crossover cables. With this feature enabled or disabled
appropriately, there is never a need with TeleLite Ethernet cards to provision the site with
anything but a straight CAT 5 cable. In this example the Ethernet Modem is MDIX enabled and
the feature on the TeleLite Ethernet card is disabled. (Figure 12)
F. Since the 720930xxx is a POE Ethernet card, the PSE DIP Switch (4
th
) on this card should
always be in the PSE Disabled position. (Figure 12)
2
defines a
medium dependent interface crossover
(MDI-X) interface.
Auto MDI-
X
ports on newer network interfaces detect if the connection would require a crossover, and automatically chooses
the MDI or MDI-X configuration to properly match the other end of the link.
Figure 11: Default DIP Switch Positions
Figure 12: Meeting conditions C, D, E & F
720930SSC POE
TeleLite Card (CFJ)
Figure 10: Power
Setting, Meeting
Condition B