Specifications

8
“R2” SERVSWITCH
1. Speci fications
Compliance: FCC Class A, DOC Class/MDC classe A
Standards:
With original Serv cabling: VGA (color, monochrome, or page white),
EGA (color or monochrome), or CGA video;
With original Serv cabling (minimal) or coaxial cabling (recommended):
SVGA video;
With coaxial cabling: XGA (color or monochrome) video;
With special cabling: True monochrome video
Interfaces: CPU and MONITOR/KEYBOARD/MOUSE Ports:
Proprietary composite of IBM PS/2 keyboard, PS/2 mouse, and video
(standards listed above);
RS-232 Port: Proprietary variant of EIA RS-232D using 6-wire RJ-11 connectors,
DTE
Resolution: With original Serv cabling: Up to 1024 x 768;
With coaxial or special cabling: Up to 1280 x 1024
Protocols: RS-232: Asynchronous
Data Formats: RS-232: 8 data bits, 1 stop bit, no parity
Speed: RS-232: 9600 bps
Maximum Distance: Depending on the CPU, monitor, and video resolution
(see Section 4.1.3), either:
25 ft. (7.6 m) of total original Serv cable from the keyboard, monitor,
and mouse to any CPU, including up to 5 ft. (1.5 m) from any
ServSwitch to any other Serv unit (submaster) attached to it; or
20 ft. (6.1 m) of coaxial cable—possibly as much as 100 ft. (30.5 m),
depending on CPUs—from any ServSwitch to any device
attached to it;
Also, 50 ft. (15.2 m) of serial cable from any ServSwitch’s RS-232 port to a
non-local computer
User Controls: Keyboard commands; (3) Front-mounted pushbuttons: ON/OFF
(power), NEXT (switch to next port), SCAN (operate normally or automatically
scan ports)