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FCD-E1A

E1 or Fractional E1 Access Unit

FEATURES

• Managed access for E1 and

fractional E1 services

• One or two data ports with

selectable sync data rates:

n × 56, n × 64 kbps

• Optional sub-E1

drop-and-insert user port for

PBX connectivity

• Failure-immune sub-E1 port

ensuring uninterrupted

service (G.703 only)

• Data port interfaces: V.35,

RS-530, V.36/RS-449, or

X.21

• Optional Ethernet or Fast

Ethernet bridge, with or

without VLAN support or IP

router

• Four ISDN BRI "S" interface

user ports

• Management:



Out-of-band via V.24

supervisory port or

Ethernet management

port



Inband via TS0 or

dedicated timeslot

• Dial-in option for remote

out-of-band management

• Dial-out for alarm report

• SNMP agent

• Optional integrated ISDN

backup

• E1 interface complies with:

ITU G.703, G.704, G.706,

G.732, and G.823

• Enhanced diagnostics

include:



User-activated local and

remote loopbacks



Integrated BER tester



Fractional E1 inband loop

DESCRIPTION

• FCD-E1A is an access unit for E1

or fractional E1 services. It can be

used as a rate and interface

converter, or as an integrating

multiplexer for E1 and fractional

E1 services (see Figures 1 and 2).

• FCD-E1A operates opposite RAD's

modular DXC multiservice access

nodes or other vendors’ E1

equipment, for multilink star

applications such as SDH network

access. DXC and FCD-E1A units

operate together under centralized

SNMP network management (see

Figure 3).

• FCD-E1A can be ordered with

either a standard electric (G.703)

or a fiber optic E1 main link.

These options are also available

with an optional sub-E1

drop-and-insert port. The unit can

be ordered with either one or two

data ports. Alternatively, an

Ethernet bridge/router port is

available instead of a second data

port.

BASIC UNIT

• The basic unit includes a power

supply, one E1 main link, and one

data port.

• The electrical 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 both 2 and 16 frames

per multiframe, with or without

CRC-4. Line coding is HDB3. The

integral LTU (soft-configurable)

ensures a range of up to 2 km

(1.2 miles).

• FCD-E1A can be ordered with a

fiber optic link to eliminate 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.

• The following fiber optic interfaces

are available:



850 nm laser transmitter for

multimode fiber of up to 5 km

(3 miles)



1310 nm laser transmitter for

single mode fiber of up to 62 km

(38 miles)



1550 nm laser transmitter for

single mode fiber for extended

range of up to 100 km

(62 miles).

1 2 3 4 5 6

FCD-E1A 1
SPECIFICATIONS 4

Indice de contenidos

Pagina 1 - FCD-E1A

FCD-E1A E1 or Fractional E1 Access Unit FEATURES • Managed access for E1 and fractional E1 services • One or two data ports with selectable syn

Pagina 2

E1 or Fractional E1 Access Unit FCD-E1A Figure 1. Extended Ethernet Management over E1 Network • Timeslot assignment is programmable, allowing da

Pagina 3

• The IR-ETH/QN port is available with a 10/100BaseT interface. The other Ethernet port options are available only with a 10BaseT (UTP) interface

Pagina 4 - SPECIFICATIONS

E1 or Fractional E1 Access UnitFCD-E1A Figure 3. SDH Access Solution for Multiple Remote Sites SPECIFICATIONS ELECTRIC E1 MAIN LINK (NETWORK) AN

Pagina 5

FCD-E1AE1 or Fractional E1 Access Unit Table 1. Fiber Optic Interface Characteristics Operating Wavelength [nm] Fiber Type [µm] Typical Output Pow

Pagina 6

 1991–2006 RAD Data Communications Ltd. Specifications are subject to change without prior notice. All other trademarks are the property of their res

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