Instruction manual

ATLAS 800 Series System Manual ATLAS 830 Rear Panel

Engineering Guidelines

10/100BaseT Connection

The 10/100BaseT port (RJ-45) provides a 10/100BaseT Ethernet LAN connection, which is used for IP

Routing, TFTP, SNMP, and Telnet connections (see Pinout 3).

Alarm Relay Connection

This connection alerts the user when a pre-selected alarm condition exists (see Pinout 4). The four-pin,

removable terminal block connects with external wiring. Refer to DLP-11, Connecting the Alarm

Contacts, on page 344 for detailed instructions. Clear the alarm condition by pressing the ACO switch

located on the front panel of the ATLAS 830.

MON

The MON IN and OUT Bantam test jacks provide a bridged access jack for nonintrusive monitoring of the

incoming T1. When connected to this jack, configure the test equipment for bridged termination.

T1/PRI Connections

Each of the T1/PRI ports, NTWK1 and NTWK2, uses a single eight-position modular jack to connect to the

T1 or PRI circuit. Pinout 5 shows the pinout for this connector.

Pinout 3. ATLAS 830 Ethernet (RJ-45)

Pin Name Description

1 TX1 Transmit Positive

2 TX2 Transmit Negative

3 RX1 Receive Positive

4, 5 Unused —

6 RX2 Receive Negative

7, 8 Unused —

Pinout 4. ATLAS 830 Alarm Relay Connector

Pin Name Description

1 NC Normally closed, but opens when a pre-selected alarm condition is present.

2 NO Normally open, but closes when a pre-selected alarm condition is present.

3 COM Common connection between external circuitry and NC or NO terminal.

4 GND The chassis ground.