Verilink 2048 (34-00179) Product Manual Instrukcja Użytkownika Pobierz pdf (Strona 13)

2-6 Installation 2048 PMU/NTU

Note that the unit’s call on alarm (COA) feature works

through the ‘SUPV’ port only.

The supervisory port bit rate must be set as described in

Section 2.5.5 on page 2-3 (Switch S4-5 and S4-6). The

physical connection is a 6-pin modular connector with the

following pinout assignments. This is a serial RS232 DCE

port configured for 8 bits, no parity, and 1 stop bit.

2.8.2 PTT Port

The 2048 PMU is fully compatible with the TxPORT

EM8000 element manager. The EM8000 software system is

used to manage small to large networks of TxPORT network

access products. The different connection methods are

described in the following paragraphs.

PTT IN/OUT: The two 6-pin modular connectors labeled

‘PTT IN’ and ‘PTT OUT’ on the rear panel may be used

for connection to the EM8000 manager. This port is config-

ured in this manner to allow the connection of multiple col-

located units in a daisy chain IN/OUT bus arrangement as

shown in the following figure.

The OUT port of one element is connected to the IN port of

the next element, and so on, to form a complete chain

among the group of elements.

Pin SUPV Port Interface

1RTS

2 Signal Ground

3 Data Out

4 Data In

5 Signal Ground

6 Mod - CD/CTS

NOTE: All units on the same NMS chain must use the

same NMS bit rate whether in a chassis or stand-alone

housing.

PTT IN Only: The ‘PTT 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 may be connected directly

into the NMS chain between two elements if connection to

the ‘SUPV’ port 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 ‘USER’

or ‘PTT’ ports. Ordering information for this cable is found

in Table 1-1 on page 1-4.

The NMS address, port bit rate, and power up configuration

mode may be set by either the configuration switches or

through software control. The physical connection is a 6-pin

modular connector with the following pinout assignments.

IN OUT

PTT

IN OUT

PTT

Element #1

Element #2

OUT IN/OUTNMS

EM8000

IN OUT

PTT

Last Element

Figure 2-3 2048 Rear Panel with BNC Connector

OUT

EQPT

OUT

USER

OUT

PTT

123456

Power/Alarm

OUT

NET

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 32 33

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