Paradyne COMSPHERE 3810 Mounting instructions

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COMSPHERE 3800 Series Modems Firmware Update for Release 4.3

Firmware Update Sheet

Document No. 3810-A2-GB41-25

January 1994

This document contains information on the new paired password

feature, leased-line dial backup enhancements, and other changes in

Firmware Release 4.3 that are not yet documented in the COMSPHERE

3800 Series Modems, Models 3810, 3811, and 3820, User’s Guide

(3810-A2-GB91-20) and COMSPHERE 3800 Series Modems,

Model 3830, User’s Guide (3830-A2-GB91-00). This update will be

incorporated into future releases of the User’s Guides. In the meantime,

keep this document with your User’s Guide.

Bulletin Board System

AT&T Paradyne offers a bulletin board system (BBS) for technical

support and general information on the COMSPHERE

3800 Series

modem. Feel free to use the BBS to leave messages regarding technical

support issues, obtain information on upgrading modem firmware, or

download updates to user documentation. To access the BBS, dial

813-532-5254 with your modem.

New Features and Configuration Options

Table 1 shows the new or enhanced features and configuration options

available with Firmware Release 4.3. In the left column is the title of

the change or addition, with references to related page numbers, if any,

in the COMSPHERE 3800 Series Modems Models 3810, 3811, and

3820 User’s Guide (shown as 3810) and the COMSPHERE 3800 Series

Modems Model 3830 User’s Guide (shown as 3830). In the right

column is information about the change.

Table 1

(1 of 8)

New Features and Changes

Feature or

Configuration

Option Notes

Set Answer

Security

VF_w/_DTE

The 3810, 3811, and 3820 modems can be configured to

require both a VF-side (Voice Frequency) password and

a DTE-side (Data Terminal Equipment) password before

DTE access is permitted.

The new Set Answer Security option VF_w/_DTE allows

specification of related VF-Side and DTE-side password

pairs. In this configuration, a DTE-side password

submitted must not only be a valid Password Table entry,

but must match the particular entry associated with the

valid VF-side password that was submitted.

The passwords are associated with each other by their

index in the Password Table: VF_plus_DTE passwords

occupy odd-numbered index locations; their DTE_Entry

counterparts occupy the even-numbered index locations

that immediately follow. So, for example, if a VF-side

password is entered that matches the entry in index

location 11, the DTE-side password subsequently entered

must match the entry in index location 12.

VF_plus_DTE passwords must be unique in a

VF_w/_DTE configuration. An attached DTE in

asynchronous operation is required for DTE-side

password entry.

Up to 10 password pairs are permitted. On the

3811 modem this can be optionally increased with the

Expanded Password Table feature, which permits

1500 password pairs.

Table 1

(2 of 8)

New Features and Changes

Feature or

Configuration

Option Notes

&Cn:

LSD Control

3810: pp. 4-19, 5-12

3830: p. 3-10

Line Signal Detect (LSD) Control is among the DTE

Interface Configuration Options, and determines the

usage and meaning of the LSD signal. The

&C6 command (BridgeRetrain) is new.

&C0 Forced on. The LSD signal is always on.

&C1 Standard RS232. LSD is on only while the

remote modem’s carrier signal is detected.

&C2 Wink When Disconnect. LSD is normally

forced on; upon disconnecting, it is turned off

for approximately one second.

&C3 Follows DTR. The state of the LSD signal

matches that of the DTR signal.

&C4 Simulated Control Carrier. LSD follows the

state of the remote modem’s RTS, via V.13

simulated control carrier signaling. The

remote modem’s RTS Action configuration

option must be set to Simulated Control

Carrier.

&C5 DTR/Disconnect Off. The state of the LSD

signal follows DTR, except upon disconnect,

when it is turned off. DTR must then be

turned off and on to turn LSD on again. The

DTR Action configuration option must be set

to Stndrd_RS232 (&D1 or &D2).

&C6 Bridge Retrain. LSD behaves as if it were set

for Standard RS232, except that it is turned

off when a retrain condition lasts longer than

10 seconds, and turned on again when no

retrain condition is detected for a period of

10 seconds.

Table 1

(3 of 8)

New Features and Changes

Feature or

Configuration

Option Notes

&S6:

DSR Control

Dial Backup Toggle

3810: pp. 4-15, 5-15

3830: p. 3-13

Data Set Ready (DSR) Control is among the DTE

Interface Configuration Options, and determines the

usage and meaning of the DSR signal. The

&S6 command (DialBkToggle) is new.

&S0 Forced On. The DSR signal is always on.

&S1 Standard RS232. The modem controls DSR,

turning it on during the handshaking process,

and off upon disconnect.

&S2 Wink When Disconnect. DSR is normally

forced on, and is turned off for 1–2 seconds

upon disconnect.

&S3 Follows DTR. When the modem receives

Data Terminal Ready (DTR), it returns DSR.

&S4 On Early. DSR is off when the modem is idle.

It is turned on when a command is issued to

enter Data mode.

&S5 Delay to DTE. Like the Standard RS232

option, except that DSR is not turned on until

the modem enters Data mode.

&S6 Dial Backup Toggle. DSR is turned off during

a dial backup attempt in Leased mode, and

on when such an attempt completes. DSR is

also turned off when a disconnect begins, and

on when the disconnect is complete.

Table 1

(4 of 8)

New Features and Changes

Feature or

Configuration

Option Notes

S46:

Bad Lines Auto

Originate

3810: pp. 4-40, 5-24

The Auto Dial Backup Control option (S46) has been

expanded and is now designated Bad Lines Auto

Originate. On modems with a shared or integral

Diagnostic Control Panel (DCP), if the Sync Leased

factory preset template is selected, the following options

are available under the Leased Line configuration option

BdLn Auto Orig:

Disable: The modem will not perform a Bad Lines

Auto Originate.

Enable: The modem will originate a call after

30 seconds of continuous bad-line

conditions.

FastBackup: The modem will originate a call after

20 seconds of continuous bad-line

conditions.

2_min: The modem will originate a call after

2 minutes of continuous bad-line conditions.

5_min: The modem will originate a call after

5 minutes of continuous bad-line conditions.

10_min: The modem will originate a call after

10 minutes of continuous bad-line

conditions.

The Bad Lines Auto Originate value also can be set with

the S46=

command:

S46=0 Disable

S46=1 30 Seconds

S46=2 20 Seconds

S46=3 60 Seconds

S46=4 90 Seconds

S46=5 120 Seconds

. . . .

S46=21 600 Seconds

Note that the S46=2 command (FastBackup) has an

effect that is out of sequence with the other values. This

ensures downward compatibility by preserving the

meaning of S46=1 (Enable) as 30 Seconds.

Table 1

(5 of 8)

New Features and Changes

Feature or

Configuration

Option Notes

S36:

Rate Auto Originate Rate Auto Originate is a new configuration option. It is

available from the Leased Line group on modems with a

shared or integral Diagnostic Control Panel, and can be

set with the S36 command on all 3800 Series modems.

Its purpose is to initiate a dial backup call, using the

phone number in directory location 1, when the

leased-line rate of the modem falls back to or below a

certain speed. From the DCP, possible values for Rate

Auto Orig are:

Disable: The modem will not perform a Rate Auto

Originate.

OnFlBkTo48: If the leased-line rate of the modem falls

back to 4800 bps, a dial backup attempt

will be initiated.

OnFlBkTo72: If the leased-line rate of the modem falls

back to 7200 bps, a dial backup attempt

will be initiated.

OnFlBkTo96: If the leased-line rate of the modem falls

back to 9600 bps, a dial backup attempt

will be initiated.

OnFlBkTo120: If the leased-line rate of the modem falls

back to 12000 bps, a dial backup attempt

will be initiated.

OnFlBkTo144: If the leased-line rate of the modem falls

back to 14400 bps, a dial backup attempt

will be initiated. This is available only on

modems with the V.32

terbo

feature.

OnFlBkTo168: If the leased-line rate of the modem falls

back to 16800 bps, a dial backup attempt

will be initiated. This is available only on

modems with the V.32

terbo

feature.

Table 1

(6 of 8)

New Features and Changes

Feature or

Configuration

Option Notes

S36:

Rate Auto Originate

(continued)

Rate Auto Originate also can be set using the S36=

command:

S36=0 Disable

S36=1 OnFlBkTo48

S36=2 OnFlBkTo72

S36=3 OnFlBkTo96

S36=4 OnFlBkTo120

S36=5 OnFlBkTo144

S36=6 OnFlBkTo168

NOTE: Rate Auto Originate is valid only when V.32 bis

Autorate is enabled (S76=0).

Table 1

(7 of 8)

New Features and Changes

Feature or

Configuration

Option Notes

S37:

Auto Redial Auto Redial is a new configuration option that works in

conjunction with the Bad Lines Auto Originate and Rate

Auto Originate options. It is available from the Leased

Line group on modems with a shared or integral

Diagnostic Control Panel, and can be set with the

S37 command on all 3800 Series modems. It allows

repeated automatic dial backup attempts by specifying the

range of Directory Locations that can be tried. From the

DCP, possible values for Auto Redial are:

Dir 1: The modem will use only Directory Location 1

for automatic dial backups.

Dirs 1–2: The modem will use Directory Location 2 in

the event of call failure using Directory

Location 1.

Dirs 1–3: The modem will use Directory Location 3 in