ME792A-MSP BLACK BOX, ME792A-MSP Datasheet

ME792A-MSP

Manufacturer Part Number

ME792A-MSP

Description

MICRODRIVER 9 RJ11 MALE W/ SUR

Manufacturer

BLACK BOX

Datasheet

1.ME792A-FSP.pdf (1 pages)

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Protocol: Asynchronous

Speed: 300 to 19.2 Kbps

Operation: 4-wire, Full-or Half-Duplex, point-to-point

Transmit Level: 0 dBm

Surge Protection: 600W power dissipation at 1 ms and

Control Signals: CTS (pin 8) turns ON immediately after

Interface: RS-232C/CCITT V.24

Connectors: (1) DB9 male/female (depending on model);

Power: No external power supply required; uses ultra-

DATA RATE (BPS)

MICRODRIVER

ME792A

19,200

9,600

4,800

2,400

1,200

response time of 1 picoseconds

the terminal raises RTS (pin 7). DSR (pin 6)

and DCD (pin 1) turn ON immediately after the

terminal raises DTR (pin 4).

(1) RJ-11 female

low power (+5VDC required, with current draw

of 3 to 5 ma at +10VDC) from EIA data and

control signals: Pins 3,4 and 7.

BLACK BOX

SPECIFICATIONS:

7.5 (12.1)

19 AWG

11.8 (19)

17 (27.4)

6.2 (10 )

8.7 (14)

DISTANCE IN MILES (km)

11.8 (19)

24 AWG

4.9 (7.9)

8 (12.9)

3.7 (6)

5.6 (9)

CONNECTOR

1 2 3 4 5 6

ME792A

DB9 M/F

RJ-11

1.2 (1.9)

4.9 (7.9)

26 AWG

8 (12.9)

2.5 (4)

3.7 (6)

Operating full-duplex over two unconditioned twisted-pair wires, the Microdriver supports data rate from 300 to 19,200 bps. The unit

draws all power from the RS-232 interface and requires no AC power or batteries.

connector. For added flexibility, the Microdriver is compatible with the ME771A-773A and the ME731A-733A.

transients. Providing 600 watts per wire of transient protection, this unit is recommended for environments prone to lightning storms,

static discharge, and other forms of EMR.

the twisted-pair and RS-232 interfaces, and how to operate it.

handshaking signals. There are two essential requirements for installing the Microdriver.

table below.

should be constructed for an environment where both Microdrivers use a 6-wire RJ-11 connector.

The DB9 Microdriver lets two asynchronous RS-232 devices with DB9 connectors communicate at distances up to 17 miles (27 km).

It's tiny size lets the Microdriver fit in very tight installation spaces. And you can make twisted-pair connections using the RJ-11

These units use the latest in bi-directional, clamping transient suppressors to guard itself and connected equipment from data line

The Microdriver is easy to install and requires no pre-configuration. This section tells you how to properly connect the Microdriver to

The DB9 Microdriver operates full-duplex in point-to-point environments. It passes both data and X-ON/X-OFF (software)

The RJ-11 on the Microdriver is pre-wired for a standard AT&T wiring environment. To be sure you have the right wiring, use the

When you connect two DB9 Microdrivers, you must use a cross-over cable. The diagram below shows how a cross-over cable

1. You must use Microdrivers in pairs. You must have one unit at each end of a two twisted-pair interface.

2. You must use two twisted pairs of metalllic wire. These pairs must be unconditioned dry, metallic wire, between 19 and 26

Connection to ground is optional. If there is a shield around the telephone cable, it may be

connected to "G" (GND) on the RJ-11 connector. Connect the shield only at the computer end to

avoid ground loops. A ground wire is not necessary for proper operation of these units.

AWG (lower-number gauges allow greater distances).

that run through signal equalization equipment.

SURGE PROTECTION

ME792A-M/F WITH

TABLE

RJ-11 PIN #

INSTALLATION:

DESCRIPTION:

DIAGRAM

Do not

GND

Ground is Optional)

SIGNAL

RCV+

XMT+

RCV-

XMT-

(Connection to

GND

use standard dial-up telephone circuits or leased circuits

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