Verilink PRISM 3101 (34-00212) Product Manual Manual de usuario descargar pdf (Pagina 17)

Configuration 3-1PRISM 3101/3102

3. Configuration

The PRISM 3101/3102 can be configured through manual

switch settings and/or through a VT100 terminal connection

to the supervisory port.

All default options in this manual are underlined

Hardware Configuration

Hardware configuration is set using four dual in-line pack-

age (DIP) switches located on the rear of the unit. These

switches allow you to configure simple applications. Refer

to Figure 3-1 for switch locations. A removable configura-

tion guide (45-00103) is included in the back of this manual.

Switch S1

Switch S1 (Figure 3-2) configures the boot mode, SUPV

Port Bit Rate, SLIP Port Bit Rate, Channel Assignments,

Data Port 1, and Data Port 2. The SUPV and SLIP switches

(S1-2 through S1-5) cannot be modified through the termi-

nal interface.

Boot Mode: Switch S1-1 determines whether the unit con-

figures itself from the DIP switches or from the battery

backed RAM. If set to boot from RAM (Up), the switch set-

tings are ignored. If set to boot from switches (Dn)

, the unit

reads the DIP switches on power-up and configures accord-

ingly. Once running, configuration changes can be made

through the terminal interface, overriding the switch settings.

SUPV Port Bit Rate: Switch S1-2 and S1-3 set the

supervisory port bit rate. This is a serial RS-232 DCE port

configured for 8 bits, no parity, and 1 stop bit. Table 3-A

shows the available speeds.

SLIP Port Bit Rate: Switch S1-4 and S1-5 set the SLIP

port bit rate. This is a serial RS-232 DCE port configured

for 8 bits, no parity, and 1 stop bit. Table 3-B shows the

available speeds.

Channel Assignment: Switch S1-6 selects the channel

assignment mode for network T1 DS0s carrying data to the

high speed port. Contiguous channel mode (Dn)

assigns the

channels as a block beginning at channel one for Data Port 1

and the first available channel for Data Port 2, if installed.

For example, if the high speed port data rate is to be 256

kbps (as defined by Switch S3), the unit assigns network

channels one through four to the high speed port.

Alternate (Up) channel mode assigns an idle channel follow-

ing each data channel. For example, data are carried on

channels 1, 3, 5, and 7. Channels 2, 4, 6, and 8 are idle (the

idle setting is binary code 01111111). The advantage of

alternate channel assignment is that T1 ones density require-

ments are maintained by the idle channels rather than plac-

ing any restrictions on the high speed data.

Data Port 1: Switch S1-7 sets the multiplier for the Data

Port 1 input timing. The unit can operate at any data rate

that is a multiple of 56 or 64 kbps. Selecting Nx64K

(Dn)

provides port bit rates that are multiples of 64 kbps. The

SUPVSLIPLAN

NET

DATA PORT 2

DATA PORT 1

115 VAC

60 HZ

S1 S2 S3

110

DTE

DBU

Figure 3-1 PRISM 3101/3102 Rear Panel (dual port 3102 shown)

7654321

Dn Up

Boot

SUPV Port

Data Port 1

Data Port 2

Mode

Bit Rate

Rate Multiplier

Channel

Assignment

Bit Rate

SLIP Port

Bit Rate

Switch

SLIP Port

Bit Rate

Figure 3-2 Switch S1

Table 3-A SUPV Port Bit Rate

S1-2 S1-3 SUPV Port Rate

Up Up 1.2 kbps

Dn Up 2.4 kbps

Dn 9.6 kbps

Up Dn 19.2 kbps

Table 3-B SLIP Port Bit Rate

S1-4 S1-5 SLIP Port Rate

Up Up 1.2 kbps

Dn Up 2.4 kbps

Dn 9.6 kbps

Up Dn 19.26 kbps

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 46 47

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