Visara SCON-25L Reference Manual User Manual
Page 16
SCON-25L/28L/3074 Console Concentrator
1174-25S Communications Server Hardware Reference Manual
2-6
707028-007
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When using fiber optic cable, a Fiber Optic Device Adapter must be installed in the
Communications Server. Note that when using Type 3 media, a connector with a special
actuator and filter (such as IBM’s DPC-T3) is required in order to connect devices
equipped with a DPC. Otherwise, a Balun assembly is used.
The following limitations apply to the use of these devices:
1. (coax length) + (5 * twisted pair length) <= 4500 ft (1375 m)
2. (minimum twisted pair length) => 100 ft (30.5 m)
Additional information about cable types and distances is available in the following
Publications:
• Using the IBM Cabling System with Communication Products, GA27-3620
• IBM Cabling System Planning and Installation Guide, GA27-3361
• IBM System/360 and System/370 I/O Interface Channel to Unit Original Equipment
Manufacturers’ Information, GA22-6974
• A Building Planning Guide for Communication Wiring, G320-8059
• IBM Enterprise Systems Architecture/390, ESCON I/O interface, and Physical Layer
specification SA23-0394