Table of Contents
Advertisement
Configuring a DS3-ATM Trunk Module
DS3-ATM trunk module specifications
The transmit and receive connectors of port 1 on the second (bottom) unit are
connected to an ATM switch.
When PVCs are properly configured, traffic from the first (top) Stinger MRT is
switched through the second (bottom) unit so that the traffic of both units can use
the uplink connection of the second unit.
Aggregation failure protection with the DS3-ATM bypass feature
The bypass feature of the DS3-ATM trunk module for the Stinger MRT unit allows
traffic from one unit to pass through (bypass) the DS3-ATM module in a second
Stinger MRT. Bypass occurs if the second unit fails or becomes inactive.
For bypass to work, the units must be connected for DS3-ATM traffic aggregation.
(For details, see "DS3-ATM traffic aggregation connection" on page 11-9.) The
connections allow DS3-ATM traffic from the first unit to reach the ATM switch, so
that end-to-end continuity to the final uplink connection is not interrupted.
Neither connector on the second (bypassed) unit has continuity to the internal ATM
switch of the unit when its DS3-ATM module is in bypass mode.
DS3-ATM trunk module specifications
The two-port DS3-ATM trunk module provides two active and two standby trunk
connections at data rates of 44.736 Mbps at each port. You can configure each port as
one of the following:
User-to-Network Interface (UNI)
Interim Interswitch Signaling Protocol (IISP) connection
Direct trunk
Table 11-2 provides DS3-ATM trunk module specifications.
Table 11-2. DS3-ATM trunk module specifications
Category
Physical dimensions
Power requirements
Temperature range
Operating humidity
Agency approvals
Interface standards
11-10
Specification
Height: 0.875 inches (2.2cm)
Width: 5.85 inches (14.86cm)
Depth: 6.95 inches (17.65cm)
Weight: 8.6 ounces (0.244kg)
6 watts (maximum)
-40°F to 149°F (-40°C to 65°C)
0% to 90%, noncondensing.
Electromagnetic Emissions Certifications: FCC Part
15 Class A, CISPR Class A.
ITU G.703.
ANSI T1.102.
Stinger® MRT Getting Started Guide
Advertisement
Table of Contents
