Modems; Networks; The Host System; Site Planning - IBM 5394 Manual

Modems
Networks
The Host System
Site Planning
You must use a modem or data circuit-terminating equipment (DCE) that can be
configured for V.35 operation. The following IBM modems are compatlble with the
V.35 interface:
• IBM 5821 Model 010
• IBM 5822 Model 010.
The following types of networks support a V.35 communications interface:
• Dataphone Digital Service (DDS) using a Digital Service Unit (DSU) V.35 inter-
face (SDLC communications mode)
• Point-to-point leased line (SDLC communications mode)
• Point-to-point high-speed private line using Limited Distance Modems (SDLC
communications mode)
• X.25 Packet-Switched Network that provides a V.35 interface (X.25 communi-
cations mode).
The IBM System/36, System/38, and AS/400™ system each require different options
to support a V.35 communications interface. For information about the specific
requirements of your host system, contact your IBM sales representative.
Power, space, and environmental requirements for attaching the IBM 5394 to a V.35
network are generally the same as those discussed in the IBM 5394 Remote
Control Unit Introduction and Installation Planning Guide. However, you must also
consider the following:
• The V.35 communications cable is 6.1 meters (20 feet) long.
• During testing, you must disconnect the V.35 cable from the modem or DCE.
Your floor plan should allow ready access to the back of the modem or DCE.
Preparing Your Network and Setup Worksheets
You can use either SDLC or X.25 communications mode with the V.35 communi-
cations interface.
Follow the instructions in the IBM 5394 Remote Control Unit Introduction and Instal-
lation Planning Guide to complete the network and setup worksheets.
TM
AS/400 is a trademark of International Business Machines Corporation.
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V.35 Supplement RPO 800725 and RPO 800726