ADTRAN TRACER 5045 - Manual (Page 28)

Section 3 Engineering Guidelines TRACER 5045 System Manual
28 © 2004 ADTRAN, Inc. 612805045L1-1B
Table 7 contains the wiring diagram needed for connecting the TRACER 5045 RS-232 interface to a
modem using the null modem adapter.
10/100BaseT/TX Connections (RJ-48C)
The physical Ethernet interfaces are provided by four RJ-48C jacks that deliver 10/100BaseT/TX
interfaces for LAN connectivity. Each port has a green
LINK LED to indicate a valid link and an amber
ACT LED that blinks with data activity on the interface.
Alarm Contacts (Plug-In Terminal Block)
An RF link down condition is indicated with both normally open (NO) and normally closed (NC) alarm
contacts on the rear panel of the TRACER 5045 system. In normal operation, the NC contact is electrically
connected to the common contact (COM) and the NO contact is isolated. When the RF link drops, the NC
contact becomes isolated and the NO is electrically connected to COM. This allows RF down conditions to
be reported to external alarm monitoring systems. Table 9 on page 29 provides the Alarm Contact pinout.
The null modem interface must route Carrier Detect (CD) on pin 8 directly from the
modem. When using the RS-232 interface for modem control, the modem must source CD
only when actually connected to a carrier.
Table 7. TRACER 5045 (DCE) to Modem (DCE - DB-25)
PIN NAME PIN NAME
2 TX 3 RX
3 RX 2 TX
4 RTS 5 CTS
5 CTS 4 RTS
6 DSR 20 DTR
7 GND 7 GND
8 CD 8 CD
Table 8. 10/100BaseT/Tx Interface Pinout
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