Black Box 5000 manual Mux Link

8.6 The Mux Link

PORT CONFIGURATION FOR THE MUX LINK

The mux link is for connecting the Multiserver to a feeder mux. The mux link can either be a leased line or a crossover cable to a locally-placed feeder mux. From the Port Configuration Menu, select option 4.

PORT CONFIGURATION [xxx]

4 MUX LINK

The next menu will appear:

Most applications require option 1, Sync External

SET LINK RATE [SYNC EXTERNAL CLOCKS]:

1.Sync External Clocks

2.2400 Sync Internal Clocks

3.4800 Sync Internal Clocks

4.9600 Sync Internal Clocks

5.12000 Sync Internal Clocks

6.14400 Sync Internal Clocks

7.16800 Sync Internal Clocks

8.19200 Sync Internal Clocks

9.9600 Async

10.1800 Async

11.1200 Async

CR - ACCEPT ENTRY

M- MAIN MENU

ENTRY:

Clocks. This is for connection of a feeder mux via a sync modem.

CHAPTER 8: Link Configuration

SET LINK RATE [SYNC EXTERNAL CLOCKS]:

1 Sync External Clocks

Options 2 through 8 are for a direct back-to-back application where the feeder mux is in close proximity to the Multiserver and there is no modem. Both the CommBox II and the Statplex Multiplexor rely on external clocking. Speed compatibility between the Multiserver and these multiplexors is not an issue. The configuration of the feeder-mux port will determine the line speed between the units.

Options 9 through 11 are for connection to an async modem. Voice/Fax is not supported over async modems.

Important

The Multiserver must be node-reset (to current configuration) after the link rate for the feeder mux port has been set.

INSTALL THE MUX LINK

Assuming that you have installed and configured the synchronous modem for the mux link, connect the cable. If you are connecting a feeder mux directly to a Multiserver, you will need a crossover cable (EZ423-0015).

Appendix B: Cabling Diagrams has information on the cables you should use and their pin assignments.

Once the connection is established, the integrity of the mux link is verified by observing that the CCM indicator light goes off for the port being used.

Important

Feeder muxes must be reset after the mux link is connected to the Multiserver. This will initialize the mux so that it can work with a Multiserver.

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