T1 Connections (Rj-48C); Alarm Contacts (Plug-In Terminal Block); Dc Power Connection (Plug-In Terminal Block) - ADTRAN 12804108L1A System Manual

TRACER 4108/4208 System Manual

T1 Connections (RJ-48C)

The physical T1 interfaces are provided by eight RJ-48C jacks that comply with the applicable ANSI and
AT&T ® standards.
PIN NAME
1 R
2 T
3, 6-8 UNUSED
4 R1
5 T1

Alarm Contacts (Plug-In Terminal Block)

Normally open (NO) and normally closed (NC) alarm contacts are provided on the rear panel of the
TRACER 4108/4208 system. In normal operation, the NC contact is electrically connected to the common
contact (COM) and the NO contact is isolated. During an alarm condition, the NC contact becomes
isolated and the NO is electrically connected to COM. This allows alarm conditions to be reported to
external alarm monitoring systems.
PIN NAME
1 COM
2 NO
3 NC

DC Power Connection (Plug-In Terminal Block)

The TRACER 4108/4208 can operate from a supply between 21 and 60 VDC, with either polarity
referenced to ground, and consumes less than 21 Watts (W). Power supplies should be able to provide up to
25 W at the selected voltage. Current required (in Amps) is determined by dividing the power consumed
(in Watts) by the applied voltage (in Volts). For example, at 48 V, TRACER 4108/4208 would draw
approximately 0.438 A (21 W/48 V).
The + terminal of the DC power connection must be connected to the most positive voltage rail, while the
– terminal must be connected to the most negative voltage rail. For example, a +24 V source should be
delivered to the TRACER 4108/4208 by connecting +24 V to the + terminal of the TRACER 4108/4208
power terminal block and ground (the most negative voltage) to the TRACER 4108/4208 – terminal.
Alternately, a -48V supply should be delivered to the TRACER 4108/4208 by connecting ground (the most
positive voltage) to the + terminal of the TRACER 4108/4208 power terminal block and -48 V to the –
terminal.
If the power supply voltages are incorrectly connected to the TRACER 4108/4208
system, the fuse will blow.
612804208L1-1B
Table 6. T1 Interface Connector Pinout
Transmit data (ring) towards the network
Transmit data (tip) towards the network
—
Receive data (ring) toward the network
Receive data (tip) from the network
Table 7. Alarm Contact Connector Pinout
Common Contact
Normally-Open Contact
Normally-Closed Contact
© 2003 ADTRAN, Inc.
Section 3 Engineering Guidelines
DESCRIPTION
DESCRIPTION
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