Specifications

C R O S S C O N N E C T S
100
RAD Data Communications 2009 Catalog
DXC Family
(Continued)
E1 modules
D4E1/D8E1
four-port or eight-port interface
modules transmit to a range of 2.2 km
(1.4 miles) by using the built-in LTU. They have
a data rate of up to 2.048 Mbps per port, and
support BERT and loopback per timeslot.
Resistive attenuation adjustment (10 dB –
30 dB) supports signaling monitoring applications
(such as SS7 network maintenance and billing).
DE1B
two-port E1 interface module transmits to
a range of up to 2.2 km (1.4 miles) with an LTU
option. BERT and loopback per timeslot are
optional. Automatic traffic bypassing is optional.
T1 modules
D4T1/D8T1
four-port or eight-port interface
modules transmit to a range of up to 2.2 km
(1.4 miles) by using the built-in CSU. The data
rate is up to 1.544 Mbps per port. The module
supports BERT and loopback per timeslot.
Attenuation adjustment (10 dB – 30 dB)
supports signaling monitoring applications (such
as SS7 network maintenance and billing).
DT1B
two-port T1 interface module transmits to
a range of up to 2.2 km (1.4 miles) with a CSU
option. BERT, loopback per timeslot and
automatic traffic bypassing are optional.
xDSL modules
D8SL
eight-port interface module uses standard
SHDSL technology to extend the range of E1
connections over 2-wire cable up to
10.7 km (6.6 miles)
D4SL
four-port interface module uses standard
SHDSL technology to extend the range of E1
connections over 2-wire cable up to
10.7 km (6.6 miles)
D8U
eight-port module enables IDSL extension
to remote modems at ranges up to 5.5 km
(3.4 miles) or as ISDN (U interface) 2B+D
channel transmission at ranges up to 5.5 km
(3.4 miles). Data rate is up to 128 kbps per port.
Special modules
D8HS eight-port n x 56/64 kbps data module
provides eight high speed synchronous data
channels, independently selected for V.35,
RS-422/V.11, X.21 or RS-530 interface.
DHS
two-port n x 56/64 kbps data module
provides two high speed synchronous data
channels. Each channel is independently
selected for 10/100BaseT Ethernet bridge,
including VLAN support, 10BaseT Ethernet
router, V.35, RS-422/V.11, X.21, or RS-530
interface.
Modules
Most modules listed on this page are supported by
all DXC chassis. A variety of port densities are
available, from single-port to eight-port modules.
Most modules support hardware and/or line
redundancy and ensure a protective switching time
of under 50 msec.
Additional features include integrated modems
(fiber, IDSL and SHDSL), range extenders and
powerful, integrated testing capabilities that
minimize network downtime. The DXC features
built-in BER testing, programmable on any port on
a timeslot level, and loopback capabilities.
STM-1 terminal module
DFSTM-1
one-port or two-port standard
155 Mbps STM-1 interface provides direct access
to the STM-n SDH ADM at the STM-n level. The
STM-1 terminal multiplexer (TM) module grooms
up to 61.44 Mbps of traffic to a standard STM-1
frame over fiber or copper. The two-port module
can be used in a drop-and-insert daisy chain to
expand services or for redundancy. When daisy-
chaining units, full payload is supported.
E3/T3 modules
DE3
one-port E3 interface module provides access
to a standard E3 frame over an unbalanced coax or
fiber link. A user-programmable connection table
enables fractional data traffic from various sources
to be groomed into full internal E1 trunks.
DT3
one-port T3 interface module provides access
to a standard T3 frame over an unbalanced T3 or
fiber link. A user-programmable connection table
enables fractional data traffic from various sources
to be groomed into full internal T1 trunks.
Height
Maximum number of ports
Number of I/O slots
System redundancy
E1, T1, E3, T3, STM-1 modules supported
ISDN, ISDL, SHDSL modules supported
n x 56/64 kbps
ASCII, SNMP, RADview NMS management supported
Features DXC-8R DXC-10A DXC-30
1U
32
4
Built-in
All
All
All
All
1U
40
5
None
All
All
All
All
3U
120
15
Optional
All
All
All
All