Patton electronics OnSite 07MOS10xx-GS, Руководство по началу работы, Страница: 51 / 66

Engineering Orderwire (EOW) 51
OnSite Series Getting Started Guide 4 • System Management Access
Note In addition to supporting selective calling of EOW stations using the
station ID, the EOW also supports a party-line function that allows
calling and communicating with all EOW stations at once (party-line
function) by dialing *000.
6. Set the Channel Byte to E2 (express orderwire byte) if there are SDH regenerators present between the
STM-1 ports connecting two OnSite OS-10 nodes supporting the EOW function; otherwise, leave the
default setting as E1 (local orderwire byte).
7. Set Termination to Termination Point if the EOW station is an OS-10 node in terminal mux configura-
tion in a point-to-point link or at the end of a linear ADM chain. For OS-10 nodes in ADM configura-
tion, leave the default setting as
Intermediate Point .
Note For OS-10 nodes in a ring network, one of the nodes must be set to
Termination Point while the rest of the nodes are set to Intermediate
Point . This arrangement is necessary to prevent an audio feedback
loop. Normally, the OS-10 node serving as the master timing node
for the ring is set to
Termination Point .
8. Click on Apply to complete the configuration of the EOW port.
Figure 22. Configuring the Engineering Orderwire (EOW) Function
After the EOW port is configured for operation, you can connect a regular 2-wire touchtone telephone set to
the RJ-11 connector of the port. To establish a voice call with another EOW station on the same OnSite OS-
10 subnetwork, take the phone “off-hook”, wait for dial tone, and then dial star (*) followed by the Station ID
number. For example, to call Station ID number 123, dial *123.
Note To use the EOW function, all OS-10 nodes in the subnetwork must
be equipped with the factory-installed AUX board option. The nodes
must also be configured with a unique station ID number for each
node.