ATLAS 550 (AC SYSTEM) P/N 1200305L2
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Quick Start Guide
Quick Start Guide, 61200305L2-13A, May 2003 Technical Support 1-888-4ADTRAN (1-888-423-8726) 2003 ADTRAN, All Rights Reserved
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AC Power Connection
Option Module Slots
Alarm Relay
Connection
Network Module Slots
10/100BaseT
Ethernet
Admin Port
External Relay
Connection
Reviewing the Rear Panel
Admin Interface Pinout
10/100BaseT Ethernet Interface Pinout
External Relay Connection Pinout
PIN NAME DESCRIPTION
1 SG Signal Ground
2 RTS Request to Send (output), follows CTS
3 TD Transmit Data (input)
4 DTR Data Terminal Ready (output), +12 V
5 RD Receive Data (output)
6 DCD Data Carrier Detect (input)
7 — Not Connected
8 CTS Clear to Send (input)
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
PIN NAME DESCRIPTION
1 Alarm Out Outputs EIA-232 level signal for connection to external
alarm contacts.
2 Alarm In Monitors signal coming from external alarm contacts.
Alarm Relay Connection Pinout
PIN NAME DESCRIPTION
1 Normally Closed (NC) Opens when a selected alarm condition is present.
2 Normally Open (NO) Closes when a selected alarm condition is present.
3 Common (COM) Common connection between external circuitry
and NC or NO terminal.
4 Chassis Ground (GND)
Connecting Power to the ATLAS 550
The AC-powered ATLAS 550 comes equipped with a detachable 8-foot power
cord with a 3-prong plug for connecting to a grounded power receptacle. Please
refer to Section 3, Network Turnup Procedures, of the ATLAS 550 System Manual
for more detailed instructions.
• This unit shall be installed in accordance with Article 400 and 364.8
of the NEC NFPA 70 when installed outside of a Restricted Access
Location (i.e., central office, behind a locked door, service
personnel only area).
• Power to the ATLAS 550 must be from a grounded 90-240 VAC,
50/60 Hz source.
• The power receptacle uses double-pole, neutral fusing.
• Maximum recommended ambient operating temperature is 45
°
C.