Specifications - Black Box PC↔422/485 Instructions Manual

System
Requirements —
Address Used —
Interrupts Used —
Interfaces —
Data Rate —
Communication
—
Chip
Maximum
Distance —
User Controls —
Connectors —
Leads/Signals
Supported —
MTBF —
Manufacturing —

1. Specifications

IBM PC/XT, PC/AT, Portable PC, or compatible, or
PS/2 Model 25 or 30, with an available ISA half-
card slot
Either 238 to 23F, 278 to 27F, 2B8 to 2BF, 2F8 to
2FF (COM2:), 338 to 33F, 378 to 37F, or 3B8 to
3BF (COM1:), user-selectable
IRQ3 or IRQ4 (user-selectable)
RS-422 and RS-485, proprietary pinning
IC030C-R2: Up to 115.2 kbps;
IC170C: 460.8 kbps and higher
IC030C-R2: 16550 UART; IC170C: 16850 UART
4000 ft. (1219.2 m)
(4): (3) Jumpers: Interrupt Selection, Driver Enable,
J8 Slot; (1) DIP Switch: Address
(1) DB25 male
Pins 7 (GND), 12 (RX+), 13 (RX–), 24 (TX+), and
25 (TX–)
>150,000 hours
IPC 610-A Class-III standards are adhered to with a
0.1 visual A.Q.L. and 100% functional testing. All
boards are built to U.L. 94V0 rating, and are
electrically tested. These printed circuit boards are
solder mask over bare copper or solder mask over
nickel.
CHAPTER 1: Specifications
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