User’s Manual
DIN-SW5G44x4 series
MSTRONIC CO., LTD.
6
Model
Input Voltage
(TOP)
Input Voltage
(Port
UPLINK)
Output voltage
802.3af/at
Isolated
DIN-SW5G44A4
DIN-SW5G44B4
DIN-SW5G44D4
44-57VDC
No input
44-57VDC
(non-regulated)
Yes
No
No input
44-57VDC
44-57VDC
(non-regulated)
Yes
No
44-57VDC
44-57VDC
Higher voltage
output
(TOP or Port
UPLINK)
Yes
No
*Ethernet Port Wiring
The PoE switch family supports one RJ-45 uplink (port UPLINK with PoE PD) and four RJ-45
ports (port 1~4 with PoE PSE) with automatic MDI/MDI-X crossover, auto-sense for speed and
duplex for 10Base-T, 100Base-TX or 1000Base-T connection. Automatic MDI/MDI-X crossover
allows you to connect to other devices (switches, hubs, or workstations etc.), without regard to
using straight-through or crossover cabling.
Port 1 to 4 provides Power over Ethernet function that delivers DC power through the data pairs C
& D (pin 4,5 and pin 7,8) (mode B) to the PD. Port UPLINK provides Power Device function that
receive power from 4 pairs or 2 pairs Ethernet cable.
The following tables describe the wiring diagram of straight-through and crossover cabling. The
crossover cables simply cross-connect the transmit lines at each end to the receive lines at the
opposite end.
Straight-through Cabling
Pin 1
Pin 1
Pin 2
Pin 2
Pin 3
Pin 3
