Alloy Computer Products POE120 Series - Manual (Page 5)

Fig. 6 Pairs used for receiving power over Ethernet Cable.
Note:
The pins used for receiving power from a PSE Device follows the
IEEE 802.3af standard.
Endpoint: -48V via TP pins 1, 2, 3, 6
Midspan: - 48V via pins 4, 5, 7, 8
5. WDM Single Fibre Model
The POE120 Series media converter has an optional Wavelength Division
Multiplexing (WDM) Model that can transport bi-directional full duplex signals
over a single fibre simultaneously.
Single Fibre Model TX, RX Wavelength
TX (Transmit) 1310nm 1310nm Single Mode 20Km
RX (Receive) 1550nm
TX (Transmit) 1550nm
1550nm Single Mode 20Km
RX (Receive) 1310nm
Note:
The 1310nm and 1550nm models must be installed in pairs,
i.e., install 1310nm model at one end and the 1550nm model at the other end.