Micro-Aide LDM-1 Manual de usuario descargar pdf (Pagina 36)

LDM User Manual

Line Requirements

Type: 4-wire

Gauge: 19 to 24AWG

Receiver

Dynamic Range

-40dBm to 0dBm

Termination Impedance

Enabled: 150Ohm

Disabled: >40KOhm

Isolation

Fully isolated from power and

DTE interface

Transmitter

Output Level

approximately 0dBm into

150Ohm, .4Vp-p

Source Impedance

Enabled: 150Ohm

Disabled: >40KOhm

Carrier Detection

If enabled, checks for absence

of signal on Xmt channel before

asserting CTS

Isolation

Fully isolated from power and

DTE interface

LDM-16 SPECIFICATIONS

Physical

Length: 19.0"

Width: 10.5"

Height: 5.4"

Weight: 20lbs. with 8 LDM-1

plug-in PCBs

Mounting

Mounts into std. 19" equipment

rack

Power

Voltage: 120Vac, 60Hz

Consumption: 40W with

8 LDM-1 plug-in PCBs

MICRO-AIDE reserves the right

to make changes, at its sole

discretion, to any specification

listed herein.

TRANSMISSION RANGE SPECIFICATIONS

The specifications listed in Table 5 apply to both point-to-point and multi-

drop network configurations limited to no more than eight modems. The

transmission distances listed refer to the cable length measured from the near-

end (master) modem to far-end (slave) modem.

Baud Rate

(bps)

19AWG 22AWG

(miles)

24AWG

2400 30 16 12

4800 25 13 10

9600 20 11 8

19,200 13 8 6

Table 5 - Cable Length vs. Baud Rate and Cable Diameter

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 47 48

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Micro-Aide LDM-1 Manual de usuario Pagina 36

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