Specifications

NSTS 21000-IDD-760XD
40
FIGURE 6-1 WIRING DIAGRAM, RS-422 ADAPTER
6.12 Ethernet Communications
6.12.1 3Com Etherlink III LAN PC Card
The 3Com Etherlink III LAN PC Card is a COTS standard Type II PCMCIA Ethernet
communications card that is PC Card 2.1 compliant. The 3Com 3C589D-COMBO card is
10BASE-2 and 10BASE-T compatible. A combo cable is attached to the card which allows the
use of either a coaxial cable connection via a BNC Connector or a Level 3 twisted pair
connection via a RJ-45 Connector. Network segments up to 1000 ft can be attained with a
coaxial cable (RG58 C/U) and segments up to 328 ft can be attained with Level 3 unshielded
twisted pair. The maximum throughput is 10 Mbps. Consult the 3Com 3C589D-COMBO
User’s Manual for additional information.
6.13 Video Communications
The PGSC contains one video-in jack and one video-out jack. Either jack requires the use of
an IBM COTS modified video interface cable assembly P/N SEZ39131213-301. The color
standard is National Television Standards Committee (NTSC) or Phase-Alternation-by-Line
(PAL) format. The standard is controlled through software settings. The video cable assembly
provides two type of connection: S-Video Jack and Composite Video Jack. The information
below describes the video specifications for each of the input/output jacks.
S-Video Jack
- 4-pin mini DIN jack
- Y signal: 1Vpp 75 ohm with negative composite sync
- C signal: 0.286Vpp 75 ohm
Composite Video Jack
- Pin jack
- 1Vpp 75 ohm with negative composite sync