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CHAPTER 1: Specifications
1. Specifications
Compliance — FCC Part 15 Subpart J Class A, IC Class/classe A
Data Rate — Up to 256 kbps typical; higher speeds possible with
careful consideration of cabling and equipment
requirements
User Controls — All models: Remote switching either through TTL,
RS-232, RS-422/485, or other active drivers or
through dry-contact closure;
SW980 and SW982 models: (1) Rear-mounted
2-position DIP switch for grounding;
SW981 models: (2) Rear-mounted 2-position DIP
switches for grounding
Indicators — Front-mounted LEDs:
All models: (1) for Power;
SW980 models: (2) for Active Port;
SW981 models: (1) for Straight, (1) for Crossed;
SW982 models: (4) for Active Port
Connectors — All models: (1) Rear-mounted RJ-45 female,
(1) Internal 4-position terminal block;
SW980 models: (3) Rear-mounted DB25 female;
SW981 models: (4) Rear-mounted DB25 female;
SW982 models: (5) Rear-mounted DB25 female
Leads Supported — DB25: All
Signal Levels — Between ±15 VDC maximum for all leads
“On” Resistance
Through Switch — SW980 and SW981 models: 35 ohms maximum,
22 ohms typical;
SW982 models: 100 ohms maximum, 40 ohms typical
Port-to-Port
Switching Speed
Using Remote
Inputs — Less than 1 µs
