Verilink Productivity 500 (34-00236) Product Manual - Manual (Page 45)

Option Configuration 500 TA Page 45
NOTE: Both the local 500 TA and remote TA must be set to the same rate
adaption protocol. Also, %A2=0 (clear channel) is synchronous mode only.
Asynchronous data should be passed using the V.120 rate adaption protocol.
V.120 Configuration %E
This command customizes the V.120 protocol. Typically, the factory default
settings for the V.120 protocol work in almost all applications. The following
settings can be modified for special applications.
B-Channel Speed %A4=
This command selects the B-channel speed, which is normally 64 kbps. How-
ever, some network B-channels may be limited to a band width of 56 kbps. If
so, it should be so stated in the network specifications.
Rings To Answer S0
This command tells the 500 TA on which ring to answer an incoming call. If
this value is set too high, the calling unit may "time out" before the call is
answered. The 500 TA will not automatically answer the call if the value is set
to "0".
Command Operation
%E0= V.120 Maximum Transmit Frame Size
Range: 1-260 default (260)
%E1= V.120 Maximum Receive Frame Size
Range: 1-260 default (260)
%E2= V.120 Window Size
Range: 1-127 default (8)
%E3= V.120 T200 Transmission Timer
Range: 1-255 default (5)
Command Operation
%A4=0 B-channel speed is 64 kbps (default)
%A4=1 B-channel speed is 56 kbps
Command Operation
S0= Range: 0-255 default (1)