Octel XC1000, Service Manual

Page: 475 / 889

OPTIONAL FEATURES
11-8 Edition One XC1000 Service
11.5.1 Connectivity
The relay contacts in the Busy-Out Controller are wired to the switch’s
make-busy wire pair, so the contacts appear open during the normal or
nonbusy state of the XC1000 TIC/DLC pairs. When the Busy-Out Controller
receives an OOS alarm or customer-generated request to busy-out either a
TIC/DLC pair or the entire system, the designated relays are switched off
and the switch receives a make-busy request. Each pair of the make-busy
leads is equivalent to the MB and MB1 pair in USOC RJ18C. The tip-and-
ring leads of RJ18C are not required, as they are separately wired to the
XC1000 ATIC or DID TIC interface connectors.
A 25-pair amphenol connector serves as the output to the switch. This
connector provides the connection from the switch’s busy-out scan points to
the Busy-Out Controller. Each make-busy wire pair must be designated as a
relay contact on the Busy-Out Controller. The Busy-Out Controller supports
up to 25 relay contacts for a XC1000 with up to 144 ports. Each relay
contact on the Busy-Out Controller can be assigned to a whole or partial
Unified Call Distribution (UCD) group on any given line-card group. Northern
Telecom’s DMS–100 cannot associate a relay contact with a whole UCD group;
all assigned individual contacts must be activated to busy-out an entire
analog XC1000. Relay contact 0 can activate a make-busy request for the
entire system if the XC1000 is configured to do so. Refer to Configuration
Note 2007
.
11.5.2 Front Panel
The Busy-Out Controller is controlled from its front panel. The front panel
is shown in Figure 11-4. A numeric display window is located at the lower
center of the Controller. This window, labeled
CHANNEL , shows the selected
relay channel to be busied or cleared. The display is used in conjunction
with the
Change Channel switch and the Increment Channel switch. Use
the switches on the front panel as follows:
Press the Change Channel switch to command the microprocessor to
begin the desired operation, which toggles between busy or ready.
Press the Increment Channel switch to count upward to the desired
channel to activate or clear a busy state on a relay contact. The
channel number is displayed in the
CHANNEL window.
After channel 24 is reached, press the Increment Channel switch to
return the channel number to 0. The channel numbers are shown in
the
CHANNEL window.
Press the LED Test switch to verify that all LEDs on the front panel
are operational.
Channel 0 provides connectivity to the switch to support a busy-out
request to the entire XC1000 if the XC1000 is configured for this action.
SECTION 11.5