E1/T1 DSU/CSU E1 FAMILY
EETU/DXC 1 F A M ILYStandalone/Rack E1 Digital Cross Connect
The ETU-DXC Digital Cross Connect offers two models, the ETU-DXC/8 and the ETU-DXC/16. These units provide 8 or 16 E1 circuits (inputs and outputs) respectively. Within the E1 circuits, non-blocking, fully transparent cross-connects between 64Kbps timeslots can be efficiently implemented. This equipment may be used as a core building block in a digital data network based upon multiple E1 lines. When combined with Time Division Multiplexing (TDM) equipment such as the ETU02-MUX or ERM-MUX, the main functions of a DDN network may be performed.
Features 19”,1U Standard, Standalone or rack mountable. 8 or 16 E1 ports for user selection. E1 PCM31 or PCM30 64Kbps transparent cross connect. System clock recovered from any E1 or from internal oscillator. Balanced E1 (120ohm) or unbalanced E1(75ohm). Complies with all ITU-T specifications. Provides user friendly interface and NMP function.
Specifications E 1 L ines F r a m e F o r m a ts: B it R a t e : L ine Codes: R x Sensitivity: L in e :
P u lse A m plitude: Jitter Tolerance: C o m p lies w ith I T U -T s t a n d a r d s : D ia g n o s t i c s :
CAS(PCM30)/CCS(PCM31), CRC-4 On/Off 2.048Mbps HDB3/AMI -20/-43dB DB25(adapter cable for 4xE1) 75 Ohm unbalanced (BNC), 120 Ohm balanced (RJ-45) or High impedance Nominal 2.37V(75ohm) Nominal 3.00V(120ohm) Complies with ITU G.823, built in jitter attenuation. G.703, G.704, G.732, G.823 Local digital, local analog, remote loopback.
Optional Items O p t i o n a l A d a p t e r C a b le DB25/BNC-8 DB25 Male to BNC x 8 DB25/RJ45-4 DB25 Male to RJ45 x 4 NMP
Network Management Protocol Software
E 1 system T x clock source R ecovery Recovery from any one E1 Rx signal. Internal 2.048MHz±50ppm M anagem ent N M P m a n a g e m ent system Power supply(A C o r D C o p tion) A C supply 220V±15%, 47~ 63Hz 110V±15%, 47~ 63Hz D C supply -48V±8V P o w e r c o n s u m p t i o n : 20W L E D I n d ic a t o r s A la r m , A c t i v i t y , P o w e r P h y s ic a l D im e n s i o n s 45 x 430 x 235mm W eight 2.5Kg E n v ironm ent O peration 0~50oC ambient temp. 0~90% RH(non-condensing)
Ordering information E T U -D X C .X X -X X X /X X AC or DC type
8 or 16 E1 ports type Balance or unbalance type
Example ETU-DXC.16-120/AC ETU-DXC with 16 E1 ports (DB25)