ADTRAN 1xN User Manual
Page 8
8
61190860L1-5B
Section 61190860L1-5, Issue 2
DSX-1
DCS
TEST
T1
T1 / HDSL / HDSL2
Office
Repeater
Bay
Office Repeater
or
HTU-C
< Live Traffic >
< Live Traffic >
< Arming Codes >
Main
Standby
< Arming Code >
WECO D4
WESCOM 3192
CENTRAL OFFICE
CUSTOMER PREMISES
ARMING OPERATION
Office Repeater
or
HTU-C
NIU
DTWA
CIM
CPE
7. PROTECTION SWITCH
Remote provisioning for a protection switch can be
accomplished by sending a specific sequence of
in-band or out-of-band messages. These remote
provisioning commands are transmitted to the
controller card from a remote test facility or a T1 test
set at a DSX panel.
Arming
Arming the controller card prevents an inadvertent
protection switch operation. The controller card can
be armed with the presence of the appropriate in-band
or out-of-band pattern on the network receive
interface. Disarming the controller card can be
accomplished with the presence of an in-band (11100)
or out-of-band (ESF datalink) NIU loop down pattern
on the network receive interface, a 1-hour time out, a
protection switch, or a manual reset. See Figure 4 for
arming activation.
In-Band Slot Enable/Disable Protocol
See Table 4 for in-band slot enable/disable protocol.
Table 4. In-Band Enable/Disable Protocol
p
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Figure 4. Arming Operation