Patton electronic 2520RC, 2500RC, 2510RC user manual Anti-Streaming Timer, RTS/CTS Delay

Set this option as follows:

•Internal (Master): To use the Model 2500RC and 2520RC internal reference clock as the timing source, select item 1. Use internal timing in point-to-point applications where the Model 2500RC Series is being used as a limited distance modem. (Set the far-end Model 2500RC Series unit for looped timing as described below.)

•Network (Looped): To have the Model 2500RC Series derive a transmit clock from the incoming data stream from the network, select item 2. This is the default setting and appropriate for most applications. (Models 2500RC and 2520RC only)

•External (Terminal Timing): To have the Model 2500RC Series use the DTE-supplied transmit clock (pin 24 on and RS-232/V.24 interface or pins U and W on a V.35 interface), select item 3. Use external timing for tail-circuit applications, in which the RS-232 or V.35 ports of two Model 2500RC Series units are interconnected.

•Switched 56 (Model 2510RC and 2520RC only): When using a Model 2510RC or 2520RC with Switched 56 service, select item 4.

Anti-Streaming Timer

Choosing option “a” (options “a” through “e” must be entered in lower-case letters) in the Software Switch Menu takes you to the Anti Stream Timer Menu (below). This option lets you enable or disable the anti-streaming timer, which protects multidrop networks from a drop that is continuously transmitting. If the DTE asserts RTS for a period of time exceeding the timer interface, the timer forces RTS off internally. This allows the rest of the multidrop network to resume operation. The Model 2500RC Series holds RTS off until the terminal drops RTS. The timer interval decreases as the line rate increases.

RTS/CTS Delay

Choosing option “b “ in the Software Switch Menu takes you to the RTS/CTS Delay Menu (below). This option lets you set the RTS/CTS turn-on delay to Normal or Extended. The delay interval decreases as the line rate increases.

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