User's Manual

05-3946A01, Rev. C TransNET OEM Integration Guide 67
6INTTL, 3 VdcSleep Mode Input—A ground on this pin turns off
most circuits in a remote radio. This allows for greatly
reduced power consumption, yet preserves the radio’s
ability to be brought quickly back on line. See “Using
the Radio’s Sleep Mode (Remote Units Only)” on
Page 26 for details.
7 OUT TTL, 3 Vdc Data Carrier Detect (DCD)—A low indicates hop-
ping synchronization has been achieved.
8INTTL, 3 VdcPower Supply Shutdown Control—A ground on this
pin causes the OEM module’s power supply to shut
down.
9— —DC Input (Regulated 3.3 Vdc)—Supply Source must
be capable of furnishing at least 7.5 watts.
10 IN TTL, 3 Vdc Transmitted Data (TXD)—Accepts payload data
from the connected device.
11 IN — DC Input (6–18 Vdc)— Supply Source must be capa-
ble of furnishing at least 7.5 watts.
12 IN TTL, 3 Vdc Request to Send (RTS)—A high causes CTS to fol-
low after the programmed CTS delay time has elapsed
(DCE).
13 — — Reserved—Do not connect.
14 OUT TTL, 3 Vdc Received Data (RXD)—Supplies received payload
data to the connected device.
15 IN — Ground—Connects to ground (negative supply poten-
tial).
16 OUT TTL, 3 Vdc Clear to Send (CTS)—Goes high after the pro-
grammed CTS delay time has elapsed (DCE), or keys
an attached radio when RF data arrives (CTS KEY).
Table 28. Transceiver Connector J3 Pinouts
(Payload data TTL; Diagnostic data RS-232)
Pin No.
Input/
Output
Signal
Type
Name/Description
1IN —Ground—Connects to ground (negative supply poten-
tial).
2OUTRS-232Diagnostic TXD—Supplies received diagnostic/ad-
ministrative data to the connected device.
3 OUT TTL, 3 Vdc Alarm condition—A low indicates normal operation.
A high indicates an alarm. (See ASENSE [HI/LO]
command for more information.)
4INRS-232Diagnostic RXD—Accepts diagnostic/administrative
data from the connected device.
Table 27. Transceiver Connector J3 Pinouts
Payload data TTL; Diagnostic data TTL (Continued)