Copyright 2017 Positron, Inc.
7
2.2.2
Type 2b Detail
Type 2b
describes multiple 10 Base-T / 100 Base-TX single port networked modems feeding a
TeleLite Ethernet card to distribute network connectivity to remote devices. See Figures 5 and 6.
2.3
DIP Switch Settings on POE and PSE TeleLite Ethernet Cards
The setting of the on-board DIP switches is dependent on the application. In general, there are
several things to take into account:
Is it a Type 1a, Type 1b, Type 2a, or Type 2b scenario?
Which of the two cards is to be set to master and which to slave
Is the modem feeding, or being fed by, the TeleLite Ethernet MDIX enabled?
What POE and PSE settings best suit the application of the cards?
*
=
Fiber to Copper Conversion
M
= Modem
300V
Point
Figure 5: Type 2b, Copper-fed
CPE
CPE
CPE
CPE
10 Base-T / 100 Base-TX
Packet
Switche
d
Network
C.O.
NTWK
EDGE
DEVICE
NTWK
EDGE
DEVICE
NTWK
EDGE
DEVICE
NTWK
EDGE
DEVICE
Cu
Network
10 Base-T / 100 Base-TX
TeleLite Model #720930xxx Ethernet CFJ
card as single-port or multi-modem single
port transport as Interface
TeleLite Model #720920xxx
Ethernet OEI card as 4-port
Ethernet Modem
M
o
d
e
m
M
o
d
e
m
M
o
d
e
m
M
o
d
e
m
HVI
300V
Point
Figure 6: Type 2b, Fiber fed
CPE
CPE
CPE
CPE
10 Base-T / 100 Base-TX
Packet
Switche
d
Network
C.O.
NTWK
EDGE
DEVICE
NTWK
EDGE
DEVICE
NTWK
EDGE
DEVICE
NTWK
EDGE
DEVICE
Optical N
etwork
10 Base-T / 100 Base-TX
TeleLite Model #720930xxx Ethernet CFJ
card as single-port or multi-modem single
port transport as Interface
TeleLite Model #720920xxx
Ethernet OEI card as 4-port
Ethernet Modem
M
o
d
e
m
M
o
d
e
m
M
o
d
e
m
M
o
d
e
m
*
