AMT-70/AMT-73/AMT-75 Installation and Operation
PIN NUMBER
SIGNAL NAME COMMENT ( Signal Direction )
16 SR Signal Freq Select
2 SI Signal Rate Indicator
32 SS Select Standby
36 SB Standby Indicator
15 IC Ring Indicator
16 SF Select Transmit Freq
14 RL Remote LoopBack
18 TM Test Indicator
8.12 RJ-45 RS232 Pin-Out (AMT-73L)
For units equipped with IP data routing, located at Port JA on the rear of the modem is an RJ-45
connector carrying RS-232 electrical signals. This port is used for controlling the router. The RJ-45
connector diagram is shown in Figure 50. The wiring is specified below. For more information
regarding control of the router, please refer to the router manual titled ‘Communication Processor’.
RJ-45 Pin Number Description
1 CTS
2 DTR
3 TxD
4 GND
5 GND
6 RxD
7 DSR
8 RTS
8.13 SSPB/Modem Cabling Requirements
The table below describes the cable assembly necessary to establish communications from the
AMT-70 modem and the AdvantechAMT SSPBs (BUC). The 9-pin D connector is a male and is not
supplied. The 17-pin circular connector is a female and is supplied with the SSPBs.
Figure 55: Cable pin-outs between AMT-70 and AdvantechAMT C & Ku band
9 PIN D CONNECTOR 17 PIN CIRCULAR CONNECTOR SIGNAL DESCRIPTION
Pin 1 Pin M Signal Ground
Pin 8 Pin D RS485 (+)
Pin 9 Pin C RS485 (-)
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