Specifications

<C#>

Introduction

V.3229 / V.3229L <C#>-3

<Re

erence>

Installation

DTE

CONNECTION

The DTE connector is a 25-pin D-series type con-

forming to EIA-232 specifications. Pin signals are

shown in Figure 2-2 and described in Table 2-1.

TELEPHONE LINE

CONNECTION

The modem operates in one of three line-related

modes:

¥Permissive (PSTN)

¥Programmable (PSTN)

¥Private line

Permissive and programmable modes are used on the

Public Switched Telephone Network (PSTN). Pri-

vate line mode is used on 4-wire or 2-wire dedicated

leased lines. The user must decide which mode to

use and then select the telephone jack arrangement

accordingly.

PSTN Connection

Modems are registered with the Federal Communi-

cations Commission (FCC) for direct connection to

the PSTN (dial-up network). The label on the chassis

bottom gives the FCC registration number and other

information.

Direct connection to the PSTN provides two modes

of operation (Figure 2-3):

¥Permissive (standard)

¥Programmable

Permissive

In permissive mode, the modem transmits a maxi-

mum signal level of -10 dBm. For standard tele-