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FCD-E1 and FCD-T1 access units for E1/T1 or fractional E1/T1 services

FCD-E1 and FCD-T1 are access units for E1/T1 or fractional E1 / T1 services. They can be used as rate and interface converters or as integrating multiplexers for E1/T1 and fractional E1/T1 services (see Figures 1 and 2). The FCD-E1 and FCD-T1 also operate opposite  RAD's modular DXC (DACS) products or other vendors' E1 / T1 equipment, to support multilink star applications, such as access to 
SDH networks. The DXC and the FCD units are managed by a centralized SNMP network management system (see Figure 3). FCD-E1 and FCD-T1 can be ordered with either a copper E1 / T1 or a fiber optic link. Both configurations are available with an optional  sub-E1 / T1 drop-and-insert port. The units can be ordered with either one or two user data ports. The second port can be an Ethernet  bridge port, with or without VLAN support.

FCD-E1/48/1/X 1720100000 FCD-E1/48/2/V 1721220000 FCD-E1/48/ETU/V 1720370000 FCD-E1/AC/1/530 1720050000 FCD-

FCD-E1 and FCD-T1 Basic Unit
The basic unit includes a power supply, electrical/copper E1 / T1 link with integral LTU / CSU, and
one data port. The E1 interface is compatible with virtually all carrier-provided E1 services and meets ITU recommendations G.703
G.704, G.706, and G.732. It supports either 2 or 16 frames per multiframe, with or without CRC-4. Line coding is HDB3. The user-
selectable integral LTU ensures a range of up to 2 km (1.2 miles).

The T1 interface is compatible with virtually all carrier provided T1 services, including ASDS from AT&T and complies with TR-62421. 
The T1 interface supports D4 and ESF framing formats. Zero suppression over the line is selectable for either transparent, B7ZS, or 
B8ZS. The user-selectable integral CSU ensures a range of up to 2.1 km (1.3 miles). FCD-E1 and FCD-T1 can be ordered with a fiber 
optic link, eliminating the need for an external fiber optic modem. The fiber optic link provides a secure link in hazardous or hostile
environments. It complies with ITU standards G.921 and G.956.

Three fiber optic interfaces are available on the FCD-E1 and FCD-T1:
850 nm laser for use over multimode fiber at distances of up to 5 km (3 miles)
1310 nm laser diode for use over single-mode fiber at distances of up to 62 km (38 miles)
1550 nm laser diode for use over single-mode fiber at extended range of up to 100 km (62 miles)

Timeslot assignment is programmable, allowing data from each data port and from the sub-E1/T1 port to be placed automatically into  consecutive timeslots. Alternatively, timeslots can be allocated manually, at user discretion. Multiple clock source selection ensures maximum flexibility for supporting different applications. The E1 / T1 main link timing can be taken from the recovered receive  clock signal, an internal oscillator, one of the data ports, or the sub- E1 / T1 port. 

The optional sub-E1 port can be configured to work without CRC-4, while the E1 main link is working with CRC-4. This allows non-
CRC-4 E1 equipment to connect to an E1 network that uses CRC-4. 

The optional sub-T1 port can be configured with D4 or ESF framing, while the T1 main link framing is ESF. This enables connection ofT1 D4 equipment over a T1 network.

Bypassing the sub- E1 / T1 port to the main link (not applicable with the fiber optic link) ensures uninterrupted service to the sub-E1 / 
T1 port, providing full immunity to hardware and power failure.

FCD-E1 and FCD-T1 are compact standalone units. A rack mount adapter kit enables installation of one or two units side-by-side in a 19-inch rack.

FCD-E1/48/1/X 1720100000 FCD-E1/48/2/V 1721220000 FCD-E1/48/ETU/V 1720370000 FCD-E1/AC/1/530 1720050000 FCD-


FCD-E1 FCD-T1 application

FCD-E1 and FCD-T1 product data sheet (pdf)

There are many ordering combinations for this popular product. Here are most of them:

FCD-E1/48/1/X 1720100000
FCD-E1/48/2/V 1721220000
FCD-E1/48/ETU/V 1720370000
FCD-E1/AC/1/530 1720050000
FCD-E1/AC/1/C/V 1720140000
FCD-E1/AC/1/C/X 1720150000
FCD-E1/AC/1/ST/85 1722250000
FCD-E1/AC/1/V 1720040000
FCD-E1/AC/1/X 1720060000
FCD-E1/AC/1/X21/ST/85 1722750000
FCD-E1/AC/2/530 1721050000
FCD-E1/AC/2/C/ETU/530 1720300000
FCD-E1/AC/2/C/V 1721120000
FCD-E1/AC/2/R 1721070000
FCD-E1/AC/2/V 1721040000
FCD-E1/AC/2/V/X 1721310000
FCD-E1/AC/C/ETU/V 1722910000
FCD-E1/AC/ETU/530 1720180000
FCD-E1/AC/ETU/V 1720210000
FCD-E1/AC/V35/X21/LTU 1721470000
FCD-E1/S1/48/1/V 1722090000
FCD-E1/S1/48/2/V 1721200000
FCD-E1/S1/48/ETU/C/V 1720580000
FCD-E1/S1/48/ETU/V 1722160000
FCD-E1/S1/AC/1/530 1720500000
FCD-E1/S1/AC/1/C/530 1721330000
FCD-E1/S1/AC/1/C/V 1721190000
FCD-E1/S1/AC/1/V 1722040000
FCD-E1/S1/AC/2/530 1721230000
FCD-E1/S1/AC/2/V 1721110000
FCD-E1/S1/AC/2/V/X 1721210000
FCD-E1/S1/AC/449/449 1721130000
FCD-E1/S1/AC/ETU 1722060000
FCD-E1/S1/AC/ETU/V 1722740000
FCD-T1/48/1/530 1730140000
FCD-T1/48/1/ETB 1730130000
FCD-T1/48/1/V 1730160000
FCD-T1/48/2/V 1732510000
FCD-T1/48/V35/ETU 1730200000
FCD-T1/AC/1/449 1730010000
FCD-T1/AC/1/530 1730110000
FCD-T1/AC/1/ETU 1732520000
FCD-T1/AC/1/R/ST/85 1732490000
FCD-T1/AC/1/ST/85 1732000000
FCD-T1/AC/1/V 1730000000
FCD-T1/AC/1/V/ST/85 1732480000
FCD-T1/AC/1/X 1730020000
FCD-T1/AC/2/530 1731000000
FCD-T1/AC/2/530/ST/85 1732020000
FCD-T1/AC/2/R 1730170000
FCD-T1/AC/2/V 1731010000
FCD-T1/AC/2/X 1731160000
FCD-T1/AC/530/MO 1730269000
FCD-T1/AC/ETU/V 1732540000
FCD-T1/S1/48/ETU 1731130000
FCD-T1/S1/48/ETU/V 1730180000
FCD-T1/S1/AC/1/449 1730210000
FCD-T1/S1/AC/1/530 1730120000
FCD-T1/S1/AC/1/V 1730100000
FCD-T1/S1/AC/2/530 1731110000
FCD-T1/S1/AC/2/V 1731100000
FCD-T1/S1/AC/2/X 1730050000
FCD-T1/S1/AC/530/ETB 1730330000
FCD-T1/S1/AC/530/ETU 1730280000
FCD-T1/S1/AC/ETU/V 1731150000

Immediate price quote - Call 727-398-5252 or e-mail cs@bestdatasource.com

Don't forget to ask about  RADCare support for your RAD products.

Other RAD sections of interest:
RAD Accessories, RAD ATM products, RAD Baseband modems and last mile access, RAD Cables & Misc, RAD Digital Service Access Devices ( FCD ), RAD Fiber Optic modems and Converters, RAD IP and Ethernet Access, RAD Kilomux Data, Voice, Fax and LAN integrating Multiplexers, RAD LRS Modem rackRAD MegaplexRAD Networks Management, RAD Optimux Fiber Multiplexers, RAD Rate and Interface Converters, RAD Sharing Devices, RAD Short Range ModemsRAD T1/E1 Digital Cross Connects ( DACS ), RAD T1/E1 Digital Cross Connect (DACS) for single E1 / T1 applications, RAD TDMoIP, RAD Voice Interface Converters, RAD Voice Trunking Gateway

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Last modified: October 25, 2017
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