Specifications

T D M N T U S
106
RAD Data Communications 2009 Catalog
Optional Ethernet port
The basic unit is available with a single data
port and an optional second data port. In the
FCD-E1L/FCD-T1L the second data port can be
replaced by an Ethernet bridge, 10/100 VLAN
bridge or 10BaseT router for direct connection
to the LAN. The FCD-E1LC and FCD-T1LC have
sub-E1/T1 drop-and-insert ports for PBX
connectivity.
User data is placed into the E1/T1 frame using
only the required number of timeslots. Timeslot
assignment is performed according to the data
port speed and can be consecutive or random,
starting from any timeslot.
Plug-and-play
For ease of installation, the FCD-E1L and
FCD-T1L offer plug-and-play connectivity. Upon
connection to the E1/T1 link, the unit
automatically detects the E1/T1 parameters and
autoconfigures. Manual configuration is an
option.
The FCD-E1L and FCD-E1LC are available with an
integral LTU (line termination unit) to provide a
range of up to 2 km (1.2 miles). The FCD-T1L
and FCD-T1LC include a built-in CSU, for direct
connection to the T1 network and providing a
range of up to 2 km (1.2 miles).
Standards compliant
The FCD-E1L and FCD-E1LC meet all
requirements of ITU G.703, G.704, G.706,
G.732, and G.823. They support both two and
16 frames per multiframe, with or without
CRC-4. Zero suppression over the line is HDB3.
The FCD-T1L and FCD-T1LC comply with
TR 62411 and TR 62421 and support both D4
and ESF frame formats. Zero suppression over
the line is selectable for either B7ZS or B8ZS
transparent.
Clock recovery, management, diagnostics
The units may be clocked from the recovered
receive clock of the main/sub-E1/T1 link or from
an internal oscillator. The data channel interface
is RS-530. Adapter cables are available for V.35,
V.36/RS-422 or X.21.
All models support an internal SNMP agent and
can be managed by any generic SNMP station or
by the RADview SNMP network management
application. The units support dial-in/dial-out,
which can be used for remote out-of-band
configuration and monitoring (dial-in) and for
alarms (dial-out).
Diagnostics include user-activated local
loopbacks on the main/sub-E1/T1 link and DCE
data port. A pseudo-random data pattern (BERT)
can be used to check the transmission path as
well as the local and remote units.
All models are available as standalone units for
the desktop or a 19-inch rack shelf.
FCD-E1L, FCD-T1L,
FCD-E1LC, FCD-T1LC
E1/T1 or Fractional E1/T1 Managed Access Units
• Single or dual port access to E1/T1 or
fractional E1/T1 services
• SNMP agent
• Out-of-band management via V.24
supervisory port
• Selectable sync data rates, n x 64 kbps
or unframed E1/T1
• Data interfaces: V.35, RS-530,
V.36/RS-449, X.21, V.24
• Integrated Ethernet bridge, 10/100BaseT
VLAN bridge or 10BaseT router options
• E1 interface complies with ITU G.703,
G.704, G.706, G.732, G.823
• Main link diagnostics include loopbacks
and BERT
For latest updates visit www.rad.com
n x 64 kbps
E1/T1
V.35, V.36
X.21
FCD-E1LC
FCD-T1LC
NMS
DXC
Router
n x 64 kbps
V.35
V.36
X.21
E1/T1
n x 64 kbps
V.35, V.36
X.21
10/100BaseT
10/100BaseT
FCD-E1L
FCD-T1L
E1/T1 or
Fractional
E1/T1
Network
PBX
FE1/FT1
The FCD-E1L and FCD-E1LC are managed single or
dual port access units for full or fractional E1
services, ideal for use as managed interface
converters. Data port rates are selectable for any
multiple of 64 kbps up to 1,984 kbps.
Alternatively, unframed E1 can be supported up to
2.048 Mbps.
The FCD-T1L and FCD-T1LC are designed for
T1-based environments, providing data rates from
56/64 kbps up to 1,536 kbps. Unframed T1 is
supported up to 1,544 kbps.