Verilink PRISM 4001 (34-00244) Product Manual Bedienungsanleitung PDF herunterladen (Seite 12)

2-2 Installation

PRISM 4001

IMING

OURCE

Positions S1-1 and S1-2 determine the source of unit clock-

ing. The most common timing source for most DDS appli-

cations is to derive timing from the network. The unit may

also be clocked from an internal standard or from the DTE

as shown in Table 2-A.

DDS N

ETWORK

ATE

Positions S1-2 through S1-5 are used to set the network

interface line rate as shown in Table 2-B.

DTE L

INE

ATE

Positions S1-6 through S1-8 are used to set the DTE inter-

face line rate as shown in Table 2-C. If in TxPORT mode

and Sync mode and Line Rate is 56 kbps, then:

If in TxPORT mode, Sync format, and the Line Rate is 64

kbps, set the DTE Line Rate as shown in Table 2-D.

If in TxPORT mode, with a Line Rate of 56 or 64 kbps, and

in ASYNC format, set the DTE rate as shown in Table 2-E.

In TxPORT mode, if the DDS Network Rate is

less than 56 kbps. The DTE Rate must match the

Net Rate. The Sync format is not allowed in

TxPORT mode below 56 kbps.

Table 2-A Timing Source

Timing

Source

S1-1 S1-2

Network

Down Down

DTE Down Up

Internal Up Down

Table 2-B DDS Network Rate

Network

Rate

S1-3 S1-4 S1-5

56 kbps Down Down Down

64 kbps Down Down Up

2.4 kbps Down Up Down

4.8 kbps Down Up Up

9.6 kbps Up Down Down

19.2 kbps Up Down Up

38.4 kbps Up Up Down

Table 2-C DTE Line Rate = 56 kbps, TxPORT

Mode, and Sync Mode

DTE Rate S1-6 S1-7 S1-8

54 kbps Down Down Down

2.4 kbps Down Down Up

4.8 kbps Down Up Down

9.6 kbps Down Up Up

19.2 kbps Up Down Down

38.4 kbps Up Down Up

Figure 2-2 T

-E

DGE

IEW

THE

RISM

4001

Switch S1

18765432

Switch S2

18765432

Switch S3

18765432

Switch S4

18765432

RS232 -----V.35RS232 -----V.35

Table 2-D DTE Line Rate = 64 kbps, TxPORT

Mode, and Sync Mode

DTE

Rate

S1-6 S1-7 S1-8

62 kbps

Down Down Down

56 kbps Down Down Up

2.4 kbps Down Up Down

4.8 kbps Down Up Up

9.6 kbps Up Down Down

19.2 kbps Up Down Up

38.4 kbps Up Up Down

Table 2-E DTE Rate=56 or 64 kbps, TxPORT Mode,

and Async Mode

DTE Rate S1-6 S1-7 S1-8

57.6 kbps Down Down Down

2.4 kbps Down Down Up

4.8 kbps Down Up Down

9.6 kbps Down Up Up

19.2 kbps Up Down Down

38.4 kbps Up Down Up

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 33 34

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