Transition Networks SGPAT1013-105 - Page 23

Transition Networks SGPAT10xx-x05 PoE+ Converter User Guide
33719 Rev. C https://www.transition.com Page 23 of 49
The figure below shows a 4-port SGPAT1040-305 configured in Redundant Fiber mode, where only 3 of the 4
ports can be active at a time.
Ethernet
Switch A
Ethernet
Switch B
Initial (Working) Path
Redundant (Fail-over) Path
UTP
PoE devices such as a VoIP
phone, Network Camera, or
Wireless Access Point (WAP)
4-Port Redundant Fiber Mode
4-port SGPAT1040-305 configured as a 2-port
Media Converter with redundant fiber links
Fiber
Fiber
Note: If set to “Revertive” mode and the failure is fixed, data transmission reverts to the Primary link.
If set to “non-Revertive” mode and the failure is fixed, data transmission remains active on the Secondary link.
4 Port model (SGPAT1040-305)
(DIP Switches or CLI commands must be set correctly)
UTP
PORT 4 PORT 3 PORT 2 PORT 1
Primary Link
Secondary Link
4-Port Redundant Fiber Mode Example
Note in the figure above: Port 3 is the Primary path and Port 4 is the Secondary path in terms of the fiber and
data path lines shown.
Port Isolation: the SGPAT1040-305 supports Port Isolation. Port Isolation mode works differently on the
SGPAT1040-205 than on the SGPAT1040-305 in terms of data flow ports/directions. Note the following:
 If Dual Converter mode is Enabled, Redundant mode is Unavailable.
 If Redundant mode is Enabled, Dual Converter mode is Unavailable.
 On the 3-port SGPAT1040-205 and the 4-port SGPAT1040-305, Port Isolation is a subset of Redundant
mode.
On the 3-port SGPAT1040-205, Port Isolation only takes affect when Redundant mode is Disabled.
On the 4-port SGPAT1040-305 Port Isolation only takes affect when Redundant mode is Enabled.
 On the 4-port SGPAT1040-305, Port Isolation is a sub-function of Redundant mode, and Redundant mode
passes data between these ports:
Operating
Mode
Dual Converter = Disabled
Redundant = Enabled
Port Isolation = Disabled
Operating
Mode
Dual Converter = Disabled
Redundant = Enabled
Port Isolation = Enabled
Traffic
Ingressing
Port #
Can egress port #s:
(green = yes, red = no,
yellow = only when active)
Traffic
Ingressing
Port #
Can egress port #s:
(green = yes, red = no,
yellow = only when active)
1
2
3
4
1
2
3
4
2
1
3
4
2
1
3
4
3
1
2
4
3
1
2
4
4
1
2
3
4
1
2
3