ADTRAN 550 Example 1 Setting Trunk Conditioning, Example 2 Creating a Dedicated Map, T1-A T1-B

Chapter 10. Dedicated Maps

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 FAULT SIGNALING (to set the state of the signaling bits) and T1 TROUBLE CODE VALUE (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.

T1-A

T1-B

PBX

							ATLAS 550
	1	2	1	2	3	4	T1-C
POWER	OK	OK	STATUS
SYSTEM	TEST	TEST	ONLINE
ETHERNET	ERROR	ERROR	TEST
REMOTE	ALARM	ALARM			MODULES
		NETWORK
	CRAFT
	ACO

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.

1

1

DUAL T1/PRI

2

500 Series

3

PORT 1

PORT 2

500 Series

O

I

MON

O

I

90-240VAC, 2A, 50/60Hz

WITHSAME

AGAINST

CAUTION:

DUAL V.35

2

4

COVERED WITH BLANK PANELS

PORT 1

PORT 2

500 Series

TYPE

RISK OF FIRE, REPLACE ONLY

FOR CONTINUED PROTECTION

ALL EMPTY SLOTS MUST BE

DUAL V.35

AND RATING OF

FUSE

NETWORK 1

NETWORK 2

FUSE RATING: 2A/250V SLO-BLO

NETWORK

NETWORK

MON

NETWORK

NETWORK

MON

ETHERNET

CONTROL

RELAY

ALARM

IN

OUT

IN

OUT

IN

OUT

IN

OUT

T1 NETWORK MODULE

TEST

500 Series

T1 NETWORK MODULE

TEST

500 Series

IN

OUT

MON

NC NO COM GND

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

61200305L1-1 ATLAS 550 User Manual 10-7