4. Commissioning
M0200AJA_ION-U_EU_L_17EP_17EP.docx
User’s Manual for ION
®
-U
Page 49
4.2.8. Control connector RS-232 LOCAL- Local Interface
These DB-9 female connectors are used for local access to this EU part and for
external modem communication between this EU and an ad
ditional “downstream” EU.
DB-9 Female
PIN
Assignment
1
Booster presence IN
2
RS232 Tx
3
RS232 Rx
4
n.c.
5
GND
6
n.c.
7
n.c.
8
Booster presence OUT
9
n.c.
figure 4-25 RS-232 connector
table 4-5 RS-232 connector, pin assignment
Connect the RS-232 cable (1.5m, contained in delivery of EU) from the LOCAL port of
this EU to the C
TRL port of the “downstream” EU.
4.2.9. Control connector RS-232 CTRL
These DB-9 male connectors are used for external modem communication between
this EU and an “upstream” RU or EU.
DB-9 Male
PIN
Assignment
1
Booster presence OUT
2
RS232 Rx
3
RS232 Tx
4
n.c.
5
GND
6
n.c.
7
n.c.
8
Booster presence IN
9
n.c.
figure 4-26 RS-232 connector
table 4-6 RS-232 connector, pin assignment
Connect the RS-232 cable (1.5m, contained in delivery of EU) from the CTRL port of
this EU to the LOC
AL port of the “upstream” RU or EU.
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