Click to expand full text
www.DataSheet4U.com
CEPT /T1
TEW4921 is designed and approved to be used as a transmit transformer with the Mitel MT89760/-60B and MT89790/90B devices in T1 and CEPT applications. Complies with ANSI T1.408 and CCITT I.431., with regards to Longitudinal Balance. TEW4921-2 is designed for MT89790B when operating from a single 5 Vdc supply.
Output Transformer
Typical applications are: • • • Primary rate ISDN network nodes. PBX or computer to T1/CEPT Digital Trunks. TDM Multiplexers.
TEW4921
Fully encapsulated in epoxy. BABT certified for reinforced insulation to EN60950 & EN41003. Cert #: CR/T/0052
MECHANICAL 6 Line side 4 TEW4921 & -1 6
WHITE DOT AT PIN 1
1 2 3 Device
1 2 3 TEW4921-2 Device
Line side
5 4
ELECTRICAL SPECIFICATIONS Impedance
TEW4921.
TEW4921 Datasheet
