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FEATURES
The DXC-2, T1/E1 Converter and Timeslot Cross-connect
enables conversion between one T1 signal and one E1 signal (24 timeslots).
The signal can be optionally provided with a built-in
CSU for T1 and LTU for E1 (see Ordering).
The DXC-2 can also be ordered with two ports of the
same type (two E1 or two T1). This allows the reshuffling of timeslots or
the modifying of framing patterns; for example, D4 to ESF for a T1 product,
or G.704 without CRC-4 to G.704 with CRC-4 for an E1 product.
The DXC-2 utilizes a user- programmable connection
table for connecting any incoming 64 kbps timeslot to any outgoing 64 kbps
timeslot. Programming can be performed during system operation, without
disruption to service.
The T1 to E1 can be set to comply with CCITT G.802,
Annex 2 (soft-selectable). This enables the location of the T1 F-bit to be
specified in the E1 data stream.
For conversion between T1 and E1 trunks, the DXC-2 can
perform the required A-law/µ-law and signaling conversion, in compliance
with T1 and E1 (CEPT) standards.
Maintenance capabilities include local and remote
loopback. When operating in ESF format, T1 link statistics are stored in
memory in compliance with both the ANSI and AT&T standards. When operating
in CRC-4 format, E1 link statistics are stored in memory in compliance with
CCITT G.706.
Selectable timing options cover all timing
possibilities for the T1/E1 interface. These include internal clock and
loopback timing, for either the T1 or E1 interface.
The T1 interface complies with AT&T TR-62411 and ANSI
T1.403 requirements, and supports both D4 or ESF framing formats and AMI
line code. Zero suppression is selectable for transparent, B7ZS or B8ZS.
The E1 interface complies with CCITT Rec. G.703,
G.704, G.732 and G.823, and supports both 2 and 16 frames per multiframe
without CRC-4, and framing with CRC-4. Line code is HDB3.
Setup, control, status, alarms and diagnostic
information can be monitored and controlled via the front panel LCD display
or via an ASCII terminal.
The DXC-2 is a compact 1U high desk-top unit, with
optional rack-mount hardware for mounting in a 19" rack.
SPECIFICATIONS·
- Converts between T1 and E1 data and signaling
- Configurable A-law/µ-law and signaling conversion,
or transparent conversion at 64 kbps timeslot level
- Soft-selectable to comply with CCITT Rec. G.802,
Annex 2
- Optionally available with built-in CSU (T1) and LTU
(E1)
- Controlled slip for buffer overflow/underflow
- Monitoring and control from terminal or from front
panel
- Loopback capabilities
- E1/E1 or T1/T1 timeslot cross-connect with optional
frame conversion
- Compact, easy to install
DXC-2/*/&/#
T1/E1 Converter and Timeslot Machine
* Specify:
115 for 115 VAC supply
230 for 230 VAC supply
48 for -48 VDC supply
& Specify:
2T1 for dual T1 ports
2E1 for dual E1 ports
(Default is one T1 and one E1 port)
# Specify:
C1 for CSU/LTU in port 1
C2 for CSU/LTU in port 2
(Default is without CSU/LTU)
ORDERING
DXC-2/115
DXC-2/115/2E1
DXC-2/115/2T1
DXC-2/115/2T1/C1C2
DXC-2/115/C1
DXC-2/115/C1/C2
DXC-2/115/C2
DXC-2/230
DXC-2/230/2E1
DXC-2/230/C1
DXC-2/230/C1/C2
DXC-2/48
DXC-2/48/2E1
DXC-2/48/C1
DXC-2/48/C1/C2
APPLICATION
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