IQH1S IU Enclosure
SECTION 4
IQH1SOPS
23/11/06
www.snellwilcox.com
Version 1 Issue 4
4.24
Setup (cont)
Pass WAN Packets
SP_IAM
This controls whether the Gateway passes wide
area I_AM packets from the serial port to the
RollCall Network. Normally this is enabled to allow
PCs attached to the serial port to be located by
other units, but it may be disabled if you wish to
control the flow of I_AM packets through a system.
NB Pass I_AM (Bridge) overrides both Pass I_AM
(Serial) and Pass I_AM (IP). So if Pass I_AM
(Bridge) is set I AM messages will be passed over
the bridge, irrespective of how the other controls
are set.
SP_TIME
This controls whether the Gateway passes wide
area TIME packets from the serial port to the
RollCall Network. Normally this is enabled to allow
PCs attached to the serial port to be time servers,
but it may be disabled if you wish to control the flow
of TIME packets through a system.
NB The Gateway will always use the received time
stamp, whether it passes it on or not (but see also
Time from Logger).
Port Mode
This item shows the current operating mode of the
serial port (RS422, RS232 or RS485).