e1 pcm

{"cid":"91201786","title":"PCM Voice Multiplexer 30 Channel E1 G.703 SNMP FXO FXS","imgUrl":"https:\/\/img.chinax.com\/nimg\/1c\/55\/2083c605534247e045c33d2929c4-200x200-1.jpg","attrs":{"Price":"$185-$230","Brand Name":"E-link","Model Number":"LNK-E1-30PCM","Minimum Order Quantity":"1pcs","Delivery Time":"1-3 working days","Certification":"ISO9001, CE, ROHS, FCC","Place of Origin":"China","Payment Terms":"T\/T,Western Union,MoneyGram,PayPal","Supply Ability":"1000\/Month","Packaging Details":"HDMI Fiber Optic Accessories Standard Carton Packaging","Maximum transmission distance":"25HZ","Ring detect voltage":"35V","Ring detection frequency":"40Km","Two-line Impedance":"600 Ohm (pick up)","Interface Code":"HDB3","Power consumption":"\u22647W"}}

{"cid":"91172112","title":"HDB3 Line Code Fiber Ethernet Media Converter STM-1 SDH Fiber Multiplexer 25HZ","imgUrl":"https:\/\/img.chinax.com\/nimg\/64\/a9\/fc75486e5acf30d19d05d74422ce-200x200-1.jpg","attrs":{"Price":"Negotiation","Brand Name":"E-link","Model Number":"LNK-SDH-30P8E14FE","Minimum Order Quantity":"1pcs","Delivery Time":"5","Certification":"RoHS,CE,FCC","Place of Origin":"China","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union, MoneyGram,Paypal","Supply Ability":"1000 pcs","Packaging Details":"Standard Export Package","Optical Interface":"2 STM-1 optical interfaces (1+1 supported)","Connector":"BNC or RJ45\/48","Transmitting Range":"S-1.1, L-1.1, L-1.2 Range from 1, 20, 40, 60, 80, 100 to 120 Km (74.5 miles)","WDM":"Single fiber bi-directional (WDM) interface can be optionally supported","Line Code":"HDB3","Impedance":"balanced 120\u03a9 or unbalanced 75\u03a9"}}