Specifications

33-7
Cisco BPX 8600 Series Installation and Configuration
Release 9.3.0, Part Number 78-10674-01 Rev. D0, July 2001
Chapter 33 AT3-6ME (T3 to T2) Interface Adapter
Operation
BPX or IGX Port Configuration
You configure the trunk on the BPX or IGX node by using Cisco WAN Manager network management
workstation or a local control terminal.
Step 1 Telnet to the first node equipped with an AT3-6ME.
Step 2 Use the Configure Trunk (cnftrk)commandtoselectT2fortheTxTrunkRate.
Step 3 Set the RCV Trunk Rate to 28980 cps.
Step 4 Repeat steps 1 through 3 for all other nodes using the AT3-6ME.
Operation
This section describes the operating modes for the AT3-6ME. The unit is designed for unattended
operation. Any failures in the unit or any line alarms or errors will be propagated.
Table 33-4 DIP Switch SW-2 Selection Guide
Switches Position Function
1
2
Up
Up
Internal synchronization source for the T2 transmitter
1
2
Up
Down
Slave T2 transmitter to T3 line
1
2
Down
Down
Slave T2 transmitter to T2 receiver
3
4
Up
Up
Long length T3 cable
3
4
Up
Down
Medium length T3 cable
3
4
Down
Down
Short length T3 cable; system is co located to IGX or BPX
1
(default)
1. T2 and T3 cable length should be set to “short” upon power-up for self-test.
Upon LOS, defaults to “internal synchronization.”
5, 6 don’tcare Unused
7 Up ATM converter mode
7 Down Test Mode
8 Up EnableBPVrelayfromT2toT3
8 Down Disable PV relay from T2 to T3
9 Up Long length T2 cable
9 Down Short length T2 cable (default)
1
10, 11, 12 Don’tcare Unused