RAD Data comm 4-Wire Symmetrical VDSL Modem ASM-60 Instrukcja Użytkownika Pobierz pdf (Strona 17)

144

RAD Data Communications 2009 Catalog

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High density 19" modem rack

(up to 14 cards)

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Central solution for copper and fiber

modems

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Compact – 4U-high

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Hot-swappable cards and power

supplies

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Indicator LEDs on each card

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Fully redundant power supply

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Optional power feeding from different

power sources (AC or DC)

ASM-MN-214

Chassis for Short Range Modems

rack of any combination of cards. The power

supplies can be either AC or DC and are suitable

for power redundancy. Replacement during

operation (hot-swapping) is possible, with no

effect on the modems and their data

transmission.

Cards that are currently supported: ASM-10/8/R,

ASM-31/R, ASM-40-1/R, FOM-20/R, FOM-40/R,

FOM-E1T1/R, FCD-2L/R, RIC-E1/R, RIC-T1/R.

The ASM-MN-214 has a terminal block for the

line interface and a 25-pin connector for the

digital interface. The terminal block is a snap-

type connector for easy replacement.

An optional mechanical adapter, the CIA, is used

to convert the 25-pin connector to the required

physical connector for either V.35 or X.21

interfaces.

ASM-40

RIC-E1/

RIC-T1

FOM-E1/T1

FOM-40

4-wire; 1.75 km (1.1 miles); up to 2.048 Mbps

Fiber optic; 100 km (62 miles); G.703; 1.544 or 2.048 Mbps

Interface converter; 1.544 or 2.048 Mbps

Fiber optic; 100 km (62 miles); up to 2.048 Mbps

ASM-MN-214

Central solution for copper and fiber modems

M I N I A T U R E C O P P E R M O D E M S /

T R A N S P A R E N T R A C K S

The ASM-MN-214 versatile modem rack is a high

density unit capable of housing any combination

of up to 14 cards.

The ASM-MN-214 accommodates two separate

power supplies. Each power supply supports a full

High density 19" modem rack

For latest updates visit www.rad.com

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4-wire, full duplex

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Internal filter for high noise immunity

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Data rates up to 19.2 kbps

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DCE/DTE switch

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No external power required

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Transformer line isolation

SRM-5A

Short Range Modem

The miniature SRM-5A is an asynchronous short

range modem connecting full duplex asynchronous

terminals to computers. The SRM-5A operates at

data rates of up to 19.2 kbps with a range of

4.5 km (2.8 miles) at 9.6 kbps.

The DCE/DTE switch allows operation as a DTE

for connection to another DCE, without

requiring a cross cable. It operates without

external power by drawing low power from the

data and control signals.

Connection to the line is through isolation

transformers for protection against AC or DC

overvoltages.

The SRM-5A modem is available with an internal

filter. The filter is designed to overcome radiated

and conducted interference for high noise

immunity.

Approximate Range (for 24 AWG/0.5 mm)

Data Rate

kbps km miles

19.2 2.0 1.2

9.6 4.5 2.8

4.8 5.0 3.0

1.2–2.4 5.5 3.4

SRM-5A

Async

computer

4-wire

Async

terminal

SRM-5A

For latest updates visit www.rad.com

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