ADTRAN Atlas 550 - Manual (Page 137)

Chapter 10. Dedicated Maps
61200305L1-1 ATLAS 550 User Manual 10-7
Example 1 Setting Trunk Conditioning
The trunk conditioning process (see also, T1 Trunk Conditioning Service on
page 10-5) sets known values in the signaling bits and the data bits for out-
going DS0s which are cross-connected to a T1 port experiencing alarms. The
trunk conditioning process consists of a 2.5-second transmission (indicating
call termination), followed by a continuous transmission (signaling the final
condition as chosen by the user).
Use the trunk conditioning menu items T1 F AULT S IGNALING (to set the state
of the signaling bits) and T1 T ROUBLE C ODE V ALUE (to set the state of the data
bits) for this process. You can set trunk conditioning for each end of each T1-
to-T1 connection in a dedicated map. To simplify this procedure, use the
copy command (press
C ). Connections to the Network and connections to
User equipment (PBX) contain different signaling bit states.
For this example, assume voice traffic is received on T1-A, and T1-B is
groomed onto T1-C to the PBX (see Figure 10-3). If T1-A fails, the DS0s which
were cross-connected to T1-C will receive trunk conditioning.
Figure 10-3. Trunk Conditioning
Example 2 Creating A Dedicated Map
Any ATLAS 550 port supporting dedicated bandwidth can be mapped to
any other port supporting dedicated bandwidth. A dedicated map defines
connections for dedicated bandwidth between ports and also grooms and
cross-connects bandwidth between T1 ports. For this example, the central
ATLAS 550 is equipped as shown in Figure 10-4.
Figure 10-4. ATLAS 550 with Modules Installed for Example 2
Example 2 (see Figure 10-5) contains three T1s (T1-A, T1-B, T1-C) that sup-
port dedicated bandwidth from three remote sites. Each remote T1 includes
DS0s for voice (1-8) and data (9-24). At the central site (the ATLAS 550), each
PBX
T1-A
T1-B
T1-C
POWER
REMOTE ERROR TEST OK
TEST ONLINE STATUS
ERROR TEST OK
CRAFT ACO
ALARM ALARM
1 2
NETWORK
1 2 3 4
MODULES
SYSTEM ETHERNET
ATLAS 550
NETWORK 1 NETWORK 2
1
2
3
4
ETHERNET CONTROL
IN OUT
RELAY ALARM
O I
FUSE RATING: 2A/250V SLO-BLO
90-240VAC, 2A, 50/60Hz
NC NO COM GND
ALL EMPTY
SLOTS MUST BE
COVERED WITH BLANK P
ANELS
CAUTION:
FOR CONTINUED PROTECTION
AGAINST RISK OF FIRE, REPLACE ONL
Y
WITH SAME TYPE
AND RA
TING OF FUSE.
MON
NETWORK
IN OUT IN OUT
NETWORK MON
T1 NETWORK MODULE TEST 500 Series
O I
NETWORK
IN OUT IN OUT
NETWORK MON
T1 NETWORK MODULE TEST 500 Series
500 Series
PORT 1 PORT 2
DUAL V.35
500 Series PORT 1 PORT 2
DUAL V.35
500 Series
500 Series
DUAL T1/PRI
MON 1 2