External modulation optical transmitter SNMP, 1548~1563, 47-1080MHz, 2 ports output, output optical power >7mw OT1550 Transmitter-AGCExternal modulation optical transmitter SNMP , 1548~1563, 47-1080MHz, DFB laser, 2 ports output, output optical power ≥7mW, SBS, 13~18dBm or adjustable, imperial F type female port, FC/APC or SC/APC connector, with SNMP, LAN and RS232 port, LCD, 19" 1U standard ...