SPECIFICATIONS:
Hardware Required: Cards can be installed only in MicroRacks (RM202, RM204, RM208 and RM216)
Cable Required: For modem-to-modem line: Four-wire unconditioned twisted-pair, 19 to 26 AWG
Interfaces: Serial: EIA/TIA-561 (compatible with EIA RS-232 and ITU-TSS [CCITT] V.24);
Line: Two- or four-wire telco;
Internal: Card-edge for module--MicroRack interconnection.
Protocol: Asynchronous.
Data Format: Transparent to numbers of data bits and stop bits and types of parity.
Flow Control: Transparent to all types of software (X-ON/X-OFF, robust X-ON/X-OFF, etc.) flow control; does not support
hardware (RTS/CTS, DTR/DSR, etc..) flow control.
RTS/CTS Delay: 0 ms (no delay) or 8 ms (user-selectable).
Operating Mode: 2-wire half-duplex or 4-wire half- or full-duplex, point-to-point or multipoint (user-selectable).
Data Rates: Transparent to all data rates up to 115.2 Kbps.
Receiver Impedance: Low (120 ohms) or high (typically 16,000 ohms), user-selectable.
Transmit Level: 0 dBm.
Surge Protection: Silicon Avalanche Diodes.
Surge-Response Time: 1 ps.
Maximum Surge Protection: 600 watts dissipated after 1 ms.
User Controls: (2) 4-position DIP switches on main module for carrier control, RTS/CTS delay, data echo, and receiver
squelch.
(2) Slide switches on main module for 2-wire vs. 4-wire operation.
(7) Jumpers:
(2) On main module for receiver impedance on Lines A and B;
(5) On Interface module;
(2) Connect/Disconnect Line A or B Shield to/from Frame Ground;
(1) Connect/Disconnect Signal Ground to/from Frame Ground;
(2) DSR tracks DTR on Line A and B (cannot be set differently).
Indicators: (13) Front-panel LED's:
(1) Power; (2) each for TD A, RD A, and CD A;
(2) each for TD B, RD B, and CD B.
Connectors: On Main Board: (1) 50-position card-edge male (to MicroRack);
On Interface Module: (1) 50-position card-edge male (to MicroRack); (2) 10-pin RJ female for modem-to-DTE lines
(2) RJ-45 female for modem-to-modem lines.
Power: From MicroRack's power supply.
Input: 120 VAC or 240 VAC (user-selectable);
Output: 10 VAC.
Consumption: 700 mW typical.
Fuse: On MicroRack:
400 ma when power supply is set to 120-VAC input;
200 ma when power supply is set to 240-VAC input.
INTRODUCTION:
The Mini Driver MP Card is a dual rack card (it has a main [front]
module and an interface [rear] module) incorporating two short-range
modems. The card operates full-or half-duplex, in point-to-point or
multipoint applications at data rates up to 115.2 Kbps and across
distances up to 9.4 miles (15.1 km), over one or two twisted pairs. It
has 13 easy-to-read front-panel LED's so you can monitor the status of
data transmission.
The Mini Driver MP card can handle up to 50 terminal drops in a
multipoint polling environment. For RS-485 and serial-printer
applications that require hardware flow control, the Card passes one
control signal in each direction. The modems on the Card can be set for
high or low impedance and for carrier always on or controlled by RTS.
The Cards also have Silicon Avalanche Diodes for protection against the
damaging effects of nearby lightning strikes and other harmful
transients.
The Mini Driver MP card is fabricated using the latest surface-mount
technology, so you get high-quality short-range modem performance on
a convenient rack card. The card is available with RJ-45 line interface
connectors on its interface (rear) module. It fill one function-card slot in
our MicroRacks (RM202, RM204, RM208 OR RM216).
