Timeslots Mapping
Any timeslot to any timeslot, with/without A-law/�-law
and/or signaling conversion per timeslot
Unused Timeslot Code
Any user defined code
Timing
System clock source:
Internal clock ( �32 ppm)
External clock (G.703, RS-422)
Receive clock (from any port)
Station Clock Interface
Data rate:
1.544/2.048 Mbps (selectable)
Compliance: ITU-T Rec. G.703 or V.11/RS-422
Connectors:
RJ-45, balanced;
BNC coaxial, unbalanced
Elastic Buffer
Buffer length: �1 E1/T1 frame
Underflow: 1 frame repeated
Overflow: 1 frame skipped (No frame sync loss for buffer
overflow or underflow)
Data delay: up to 375 �sec
Signaling buffer: ��1 E1/T1 multiframe
Diagnostics
Local E1 or T1 loopback
Remote E1 or T1 loopback
Local and remote n x 56/64 kbps data port loopback
Code activated network loopbacks per ANSI T1.403 (DT1B)
Loopback for any timeslot (DE1B/DT1B) per ANSI 403 RDL
Built-in BERT (DE1B/DT1B)
Alarm mask (user-defined)
Statistics
T1 ESF diagnostics:
Full support according to ANSI T1.403 and local support
according to AT&T 54016
Transparent FDL between two T1 ports
E1 CRC-4 diagnostics:
Per ITU-T Rec. G.706; RFC 1406, 1407
Local support equivalent to AT&T 54016
Management Port
Dial Port (SP-MODEM) with V.24/RS-232, async interface;
Data rate: 0.3�57.6 kbps, autobaud
Connector: D-9 female, DTE
Ethernet with 10BaseT (DCL.2 only)
Ethernet with 10/100BaseT (DCL.3 only)
Ethernet with 10Base2 (DCL.2 only)
Indicators
Front panel:
Major Alarm, Minor Alarm, Test,
On-line (per power supply) On-line (per common logic)
Rear panel:
Module indicators (see separate data sheets)
Physical
DXC-30E
Height: 26.6 cm / 10.5 in (6U)
Width: 43.8 cm / 17 in
Depth: 25.4 cm / 10 in
Weight: Less than 16 kg / 35 lb
DXC-30
Height: 13.2 cm / 5.25 in (3U)
Width: 43.8 cm / 17 in
Depth: 25.4 cm / 10 in
Weight: Less than 8 kg / 17 lb
DXC-10A and DXC-8R
Height: 4.4 cm / 1.75 in (1U)
Width: 44.0 cm / 17.3 in
Depth: 25.4 cm / 10 in
Weight: Less than 2.5 kg / 5.5 lb
(All weights are given for fully equipped hubs)
Power Supply
100-240 VAC, 47 to 63 Hz
+24V, -48 VDC nominal
Power Consumption (max)
DXC-8R: 60W
DXC-10A: 60W
DXC-30: 120W
DXC-30E: 188W
Environment
Temperature: 0�4 5 C / 32�11 3 F
Humidity: up to 90%, non-condensing
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