Section 3 — Link Interfaces Reference
Pinout Information
Each link interface available is described with detailed information on pin designation. Standard interface cables will provide correct connections to modems, datasets, or DSU/CSUs.
When connecting two bridge/routers
V.35 Module Identification:
V.35 links are provided as DB25 connectors on the back of the bridge/router, so an interface converter is needed to convert to the standard V.35 connectors.
Link Clocking Information
All of the link interfaces on the IOLINK router act as DTE devices, this means that they may be directly connected to DCE devices (modems, etc.) with the DCE devices providing the clocking for the link. The link speed is controlled by the DCE device. Setting the link speed on the IOLINK router will not result in a speed change on the link.
Some DCE devices allow the DTE devices connected to them to supply a clock signal which is then routed back to the transmit clock pins on the DCE interface. This clock is then received by the IOLINK link interface. By using this method, the IOLINK router may be in control of the link speed. The link speed may also be controlled by the IOLINK router when a
Changing the link speed within the menu system of the IOLINK router changes the clock output speed that is generated on the DTE Terminal Timing pins on the link interfaces.
