Specifications

16
MULTI-FUNCTION LINE DRIVER
4.1.2 M ODEM - TO -M ODEM C ABLING FOR THE ME658 AND ME659 M ODELS
If your application requires that you run cables with RJ-11 or RJ-45 connectors
between Multi-Function Line Drivers, you must use RJ-11-type (ME658
models) or RJ-45-type (ME659 models) MFLDs respectively. The modem-to-
modem cable must be specially cross-pinned, as shown in Table 4-1 and
Figure 4-1 on the next page. If your cabling includes punchdown blocks, you
can easily do the cross-pinning at a punchdown block. If you will be running
cable directly between two Multi-Function Line Drivers, you can get a custom
cable from Black Box as a special quote, or you can use regular straight-
through-pinned cable and repin one of the RJ connectors (that is, rearrange
the wiring connections between the terminal block and the actual contacts).
You might need special crimping tools or new connectors; call Black Box for
these items, or for technical support if you have difficulty.