Siemens TIM 1531 IRC - Page 65

Configuration
4.8 Parameters of WAN networks
TIM 1531 IRC
Operating Instructions, 02/2018, C79000-G8976-C468-02
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Access method
●
Access method
If required, set the default access method for the respective WAN type here:
– Dedicated line: Polling / Polling with time slots
– Dial-up network: ST7 protocol (spontaneous)
Frame parameters
●
Frame format
– FT1.2
– FT2
●
Acknowledgment type
– Short acknowledgment (1 byte)
– Long acknowledgment (5 bytes)
●
Repetition factor
The repetition factor decides how often a data frame that has not been acknowledged
positively is repeated.
●
Max. frame length
The maximum frame length depends on the largest length (240 bytes) of an ST7 data
frame within the network.
From this parameter time values (e.g. send repetition time) are derived for monitoring
functions.
Network settings
●
Dependence on direction
Direction dependency of the network
– Duplex
– Half duplex
●
Transmission speed
Speed at which the CP and modem communicate.