Appendix A
–
NetXpress LX Conversion
NetXpress LX & CM-30R Installation & Operation Manual
Version 1.1
GatesAir, Inc.
A-3
Intraplex Products
1.
Switch bank SW1 sets the input impedance for the timing input connections. These switches
should be set to ON for most applications. Confirm that these switches are set properly on SW1 on
the MA-230 or MA-231-2 adapter. (Section 3.2.2.3 and Table 3-4 describe the switch functions.)
2.
At the desired location, remove a single-width aluminum blanking plate from the back panel of the
multiplexer shelf by loosening the two retaining screws associated with the plate. The MA-230
adapter only requires one panel width, but you may find that you need to remove a double- or
triple-wide panel from the back panel to locate the desired numbered slot. You need to remove
four Phillips screws in order to free a double- or triple-wide panel.
3.
While keeping the name of the MA-230 panel oriented toward the top of the chassis, align the
edges of the module adapter with the module alignment grooves that are provided on the top and
bottom walls of the chassis.
4.
Slide the MA-230 module adapter from the rear of the shelf toward its mating connector on the
midplane until the aluminum plate is flush with the top and bottom rails of the back panel. When
installing the MA-231-1/MA-231-2 redundant module adapter pair, the MA-231-1 should be placed
into the lower slot number, and the MA-231-2 into the next higher numbered slot adjacent to the
slot occupied by the MA-231-1. Join the redundant module pair together using the short jumper
cables provided in the kit.
5.
Secure the module adapter(s) to the back panel with the Phillips screws that are provided.
6.
Install aluminum plates in any remaining blank slots, or reposition the set of aluminum blanking
plates as needed, to completely secure the back panel area.
A.2.1.2 Install the First CM-30R IP Interface Module
You can install the CM-30R module while the multiplexer is still in live service. Proceed with caution
when installing into a live system to prevent service interruption and damage to components.
Before installing the module in the multiplexer, take note of any pre-existing alerts or alarm conditions
being reported by the installed T1/E1 common module. This discussion assumes that the multiplexer is
currently showing a green NORMAL condition on the power supply and the installed T1/E1 common
module controller.
Observe anti-static procedures while handling the CM-30R module outside of its protective packaging.
The packaging should be normalized with the multiplexer prior to opening or handling the bare
module, and the module should not be transported even across the room when not wrapped in anti-
static packaging. If you have a wrist strap, clip it to the multiplexer chassis or the rack into which the
multiplexer is installed.
To install the CM-30R module, perform these steps:
1.
Switch bank S2 is used to reset the module to factory defaults. These switches should be set to
OFF for most applications. However, for the very first installation of a new module, you can turn
them ON to initialize the module. Confirm that the two switches on S2 are set properly. (Table 3-2
–
CM-30R
Switch Settings
in Section 3.2.2.2 gives the switch functions.)
2.
With the CM-30R module resting on its anti-static bag or other static-safe material, its white tab
turned toward you, and the gold fingers away from you, grasp the module by its edges only and
tilt the module clockwise until the solder side is
to your left and the module’s component
s are to
your right.
Note:
If you are not wearing a wrist strap, your free hand should maintain a ground connection
with the multiplexer chassis to reduce any static potential.
3.
Locate the module slot in the front of the system card cage that corresponds to the location of the
installed MA-230 or MA-231-1 module adapter on the rear of the shelf.
4.
While keeping the white ejector tab oriented toward the floor of the chassis, align the edges of the
module with the front slot alignment rails that are provided along the top and bottom of the
chassis, and slide the module in so that it is now supported by the alignment rails.
