Diplomat jr Model jrN-ASV User Guide Issue No. 2 (03/01)
12
The meaning of the bits in Configuration Byte A are given in the following table.
Bit
Name
Description
of Switch
0
BHWPNG
[0] - Ignore ICMP ECHO notifications.
[1] - If an ICMP ECHO message is received on Port B and Configuration
Byte B BEXREP=1 then output a BEL character on Port A. If
BHWDIS=1 then also drop pin 6(DSR) and pin 8(DCD) on Port A for
1 second. A TTL logic level 1 is also asserted on pin 12 of Port A for 1
second.
1
BHWDIS
[0] - Disable Hardware Disconnect
[1] - Enable Hardware Disconnect. If DTR drops then any OPEN TCP
session is CLOSED. If an OPEN TCPsession is CLOSED from the
remote side then drop pin 6(DSR) and pin 8(DCD) on Port A for 1
second. A TTL logic level 1 is also asserted on pin 12 of Port A for 1
second.
2
BCNTR
[0] - Only action defined Control Characters, DLE, ENQ, DC2 during the
first 15 seconds after power up, if configuration cable detected,
otherwise treat data stream completely transparently.
[1] - Always action defined Control Characters
3
BXON
[0] - Treat DC1 and DC3 characters as data.
Note:If the connected device issues either of these characters and
BECHO=1 then a feedback loop is established and the network
could be flooded with packets of DC1/DC3 characters.
[1] - Use DC1 and DC3 characters for local XON/XOFF flow control
4
BCRLF
[0] - Do not append a LF character to echoed CR characters
[1] - Append LF character to each CR character echoed
5
BECHO
[0] - Do not Echo input characters
[1] - Echo all input characters
6
BSCHAR
[0] - Only send data to Network on a terminator character or input buffer
full condition
[1] - Offer each character input for immediate transmission over the
Network. Characters may naturally accumulate and there is no guar-
antee that a TCP segment will only contain a single character.
7
BEXREP
[0] - Do not output Error Message Texts to Port A
[1] - Output human readable Error Message Texts to Port A
Configuration
