... , meeting and Fax pass through etc.. Product specification:* Provide 32 port FXS or FXO,can be hardware configured with plug-in ... customer requirement.* 1 or 2 E1/T1 Port* E1 Signaling Support: SS7, ISDN-PRI, Q.SIG, V5.2 and T1 Signaling Support ... ,T1,G.703RJ45Ethernet port10/100Base-T,IEEE 802.3RJ45ConsoleRS232RJ45Analog lineseach port with 4 linesRJ45 ItemSpecificationInput voltage-48V DC or 100~240V ...