Verilink 2000 (34-00182) Product Manual Manual de usuario descargar pdf (Pagina 25)

Network Management

2-13

All units on the same NMS chain must use the same NMS bit rate whether in a chassis or

stand-alone housing.

NMS IN Only

The NMS IN connector provides both the transmit and receive signal pair. This

port may be used for a modem connection or as a VT100 terminal interface

(explained in the Terminal Operation chapter).

NMS Split Cable

The EM8000 or 8100A may be connected directly into the NMS chain between

two elements. The EM8000 may also be connected to the SUPV port if the NMS

connection is not desirable. A Y cable is used from the EM8000 serial port which

splits the transmit and receive signals into two 6-pin modular connectors for the

NMS IN and NMS OUT ports. Ordering information for this cable is found in

Optional Equipment on page 1-7.

The NMS address, port bit rate, and power up configuration mode may be set by

either the configuration switches or through software control. The NMS bus

physical connection is a 6-pin modular connector with the following pinout shown

in Table 2-11. This port is a serial RS-232 DCE port configured for 8 bits, no

parity, and 1 stop bit.

Table 2-11

NMS Bus Pinouts

Pin NMS Bus IN NMS Bus OUT

1 Not Used Not Used

2 Signal Ground Signal Ground

3 Data Out Data Out

4 Data In Not Used

5 Signal Ground Signal Ground

6 Not Used Not Used

IN OUT

NMS

IN OUT

NMS

Element

OUT IN/OUTNMS

EM8000

or 8100A

IN OUT

NMS

Last

Element

Figure 2-7

NMS Daisy-Chain Arrangement

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 57 58

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Verilink 2000 (34-00182) Product Manual Manual de usuario Pagina 25

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