ZyXEL RS-1612 User Manual download pdf (Page 18)

Figure 2-2 RS-1612 Rear Panel

DTE RS-232 Ports

The RS-1612 rack has sixteen DTE RS-232 ports. Each port

corresponds to a modem card slot on the front. Connecting an RS-

232 cable between a modem port and a computer serial port allows

two-way data transfer between the modem and the computer.

Terminal Blocks

Each terminal block has eight terminal pins (four for RE models)

for connecting phone lines to the corresponding modem on the RS-

1612 rack. The eight pins of a terminal block are defined in the

table below:

Pin Assignment Purpose

1 TELE SET TIP Connects to your telephone.

2 TELE SET RING Connects to your telephone.

3 TIP Connects to dial up line or U-336RE

leased line.

4 RING Connects to dial up line or U-336RE

leased line.

5 RX For use on four-wire leased line

systems receiving line (R model only).

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 36 37

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ZyXEL RS-1612 User Manual Page 18