@startuml

skinparam monochrome true
skinparam defaultFontName Arial
skinparam classFontSize 10
skinparam sequenceBoxBorderColor #black
participant "**Host A**\nCRON Service Gate" as hosta_cron 
participant "**Host A**\nAdministration Gate" as hosta_adm
participant "**SSP Host**\nAdministration Gate" as hostb_adm
participant "**SSP Host**\nCRON Application Gate" as hostb_cron 
autonumber
...**Notation:**  Gate Identifier : Pipe Session Open on [P<sub>IN</sub>,P<sub>OUT</sub>]...
hostb_adm->hosta_adm:EVT_ADM_BIND [**CRON_CTR,P<sub>20</sub>**]
hosta_adm->hostb_adm:EVT_ADM_BIND [**CRON_CTR,P<sub>10</sub>**] 
note right : Pipe Session Open on [P<sub>20</sub>,P<sub>10</sub>]
note left : Pipe Session Open on [P<sub>10</sub>,P<sub>20</sub>]
...
hostb_cron->hosta_cron: CRON-READ-DATE-TIME-Command on P<sub>10</sub>
activate hosta_cron
activate hostb_cron
hosta_cron-->hostb_cron: eCRON-OK [Date] on P<sub>20</sub> 
deactivate hostb_cron
deactivate hosta_cron
...
@enduml