Copyright 2017 Positron, Inc.
8
2.3.1
Type 1a: 720930xxx TeleLite POE Ethernet Card
Located at the Central Office (CFJ)
(Note: Default DIP Switch Settings are shown in Figure 8)
A. If the 720930xxx POE Ethernet card is to be powered by C.O. battery (-48Vdc) then the two on-
board Power Option Jumpers should be set in the LOCAL PWR position. (Figure 7)
B. If the 720930xxx card was to be powered by POE at the C.O. (or CFJ) the Power Option Jumpers
are to be set to the remote power (RMT PWR) positions. (Figure 7)
C. If the 720930xxx TeleLite POE card is placed in the Central Office (C.O.) and is feeding Ethernet to
a remote, unmanned site, such as a solar farm, the Master and Slave switches should be set so
that the 720930xxx card is set as Master, and the companion 720920xxx card located at the OEI
(Optical Electrical Interface) is set as Slave. Alarms will be reported to the manned 720930xxx
located at the Central Office. (Figure 9)
D. If this is a Type 1 Ethernet deployment as described in Section 1.3.1, the 2
nd
DIP switch should be
set to the left. (Figure 9)
E. If the Ethernet modem that is feeding the TeleLite modem, or is being fed by the TeleLite Ethernet
cards is MDIX enabled
(1)
, 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 9)
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 9)
1
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 9: Meeting conditions C, D, E & F
Figure 8: Default DIP Switch Positions
720930SSC
POE
TeleLite Card (CFJ)
Figure 7: Power Setting,
Meeting Condition A
