ME733A-M BLACK BOX, ME733A-M Datasheet

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ME733A-M

Manufacturer Part Number
ME733A-M
Description
CS MINI DRIVER - A/RJ45 MALE
Manufacturer
BLACK BOX
Datasheet
Protocol: Asynchronous
Speed: Up to 19,200 bps (no strapping)
Distance: See table below.
Surge Protection (SP models only): 600W power dissipation at 1 ms and response time of
Control Signals: DCE Mode; CTS (pin 5) turns ON immediately after terminal raises RTS
Operation: 4-wire unconditioned line (2 twisted-pair wires), full-duplex.
Transmit Level: 0 dBm
Connectors: (1) DB25 male or female (depending on model chosen).
Line Connection: RJ-45 modular jack
Power: No power required; uses ultra-low power (+5VDC) from EIA data and control
Speed (bps)
(pin 4); DSR (pin 6) turns on when powered-up; DCD (pin 8) turns ON after
detecting the receive signal from the line.
DTE Mode; RTS (pin 4) turns ON immediately after modem raises CTS (pin 5);
DTR (pin 20) turns ON after recognizing the receive signal from the line.
signals ---- Pins 3,5,6,8, and 9 in DCE mode; Pins 2,4,9 and 20 in DTE mode.
19,200
9600
4800
2400
1200
Distance Table in miles (km)
1.0 picoseconds.
7.5 (12.1 km)
11.8 (19 km)
17 (27.4 km)
6.2 (10 km)
8.7 (14 km)
19 AWG
SPECIFICATIONS:
Wire Gauge
11.8 (19 km)
4.9 (7.9 km)
8 (12.9 km)
3.7 (6 km)
5.6 (9 km)
24 AWG
RJ-45
JACK
1.2 (1.9 km)
4.9 (7.9 km)
8 (12.9 km)
DCE
2.5 (4 km)
3.7 (6 km)
26 AWG
1 2 3 4 5 6 7 8
DTE
19.2 Kbps, and requires no AC power or batteries.
it sends a log-on screen to a terminal. The carrier sense feature also plays an important role in troubleshooting, where the presence or absence of a carrier indicates
or negative line integrity.
Silicon Avalanche Diodes which give you 600 watts per wire of protection against harmful transient surges.
The figure to the left, show the location of the DCE/DTE switch on the PC board, as well as the location of the RJ-45 modular jack.
switch to DTE. On this setting, the Driver will act like a DTE and transmit data on Pin2.
setting, the Driver will act like a DCE and transmit data on Pin 3.
at distances up to 17 miles (27.4 km) and speeds up to 19.2 Kbps. There are two essential requirements for installation:
environment where both Drivers use a 4-wire RJ-45 connector.
The CS Mini Driver-A let's you put 17 miles (27.4 km) between your RS-232 UNIX systems. The Driver uses unconditioned twisted-pair cabling, supports speeds of up to
A carrier sense feature automatically detects the presence of a carrier on the line, making the Driver ideal for UNIX environments where the host must see a carrier before
Small and sturdy, the Driver comes housed in an ABS plastic case. It includes a male or female DB25 connector and RJ-45 modular jack. The "SP" models incorporate
Easy to use, the Driver has no internal jumpers or configuration switches to set. The only thing you must do is set the external DCE/DTE switch.
The Driver includes an external DCE/DTE switch. If a modem or multiplexor is connected to the Driver (or if the connected device is wired like a modem or mux), set the
If a PC, terminal, or host computer is connected to the Driver (or if the connected device is wired like a PC, terminal, or host computer), se the switch to DCE. On this
Once you configure the DTE/DCE switch, you're ready to connect the Driver to your network. The Driver supports data-only communication between two RS-232 devices
The RJ-45 connector on the Driver's twisted-pair interface are prewired for a standard AT&T wiring environment.
When you connect two CS Mini Driver-A units, you must use a crossover cable. The diagram below shows how you should construct a crossover cable for an
SETTING THE DTE/DCE SWITCH:
1. These units work in pairs. You must have one Driver at each end of a two-twisted-pair interface.
2. To function properly, the Driver needs two twisted-pairs of metallic wire, between 19 and 26 AWG (higher-number gauges may limit distance; see the distance
TWISTED-PAIR CONNECTION USING RJ-45:
RJ-45
SIGNAL PIN
GND
RCV-
XMT+
XMT-
RCV+
GND
1
2
3
4
5
6
7
8
table for specific distance and AWG recommendations). Do not use standard dial-up telephone circuits or leased circuits that run through signal-equalization
equipment.
ME733A-M/F or with(Surge Protection)
SIGNAL
GND
RCV-
XMT+
XMT-
RCV+
GND
2
3
4
5
6
7
N/C
N/C
PIN
7
5
6
3
4
2
SIGNAL
GND
XMT-
RCV+
RCV-
XMT+
GND
CONFIGURATION:
INSTALLATION:
DESCRIPTION:
positive

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