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Installing a Stinger MRT
Installing and removing trunk modules
Warning
!
cabinet top-heavy or unstable. Take all necessary precautions to anchor the cabinet
securely before installing the unit.
Installing and removing trunk modules
A Stinger MRT trunk module can be replaced for maintenance purposes, or to change
the type of outbound (egress) line used by the unit. Trunk modules for the MRT 23
and MRT 19 are slightly different, and are not interchangeable. When changing trunk
modules, be sure that you use a trunk module that is designed for your MRT chassis.
Caution
!
For more information, see "Preventing static discharge damage" on page 2-2.
Warning
within the card cage. Remove all metallic objects from hands and wrist to prevent
bridging of live contact points.
Installing a trunk module
To install a trunk module:
1
Put on the antistatic wrist strap and connect it to ground potential.
2
Verify that power to the Stinger MRT unit has been disconnected or turned off.
3
For the MRT 23, turn the trunk module so the connector is below the printed
circuit board, and the circuit board is aligned to slide above the guide rails in the
top of the trunk module slot, as shown in Figure 3-13.
Figure 3-13. Installing an MRT 23 trunk module
STATUS
GROUP
1
5
6
10
PORTS
For the MRT 19, turn the trunk module so that the connector is above the
printed circuit board, and the circuit board is aligned to slide into the guide track
near the bottom of the trunk module slot, as shown in Figure 3-14.
3-12
The weight and position of hardware within the cabinet might make the
Wear an antistatic wrist strap before handling any of the unit components.
If power to the unit is not turned off, an electrical energy hazard is present
PORT
SELECT
POTS 25-48
POTS 1-24
SD
SD
LOS
LOS
PORT 1
Stinger® MRT Getting Started Guide
PORT 2
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