Accessory Connector 3; Table 9. Accessory Connector 3 - Pin Descriptions - Motorola ASTRO Spectra Instruction Manual

Accessory
Connector 3
Pin Signal Name
1 RS232_RXD (NC)†
2 ANA_GND
3 AUX_RX_AUD
FILT_AUD
4
(DET_AUD)†
5 A+
6 BUSY
7 BUS+
8 BUS_SHLD
VSENSE1
9
(RS232_RXD)†
10 VSENSE1_SHLD
11 TAPE_OUT
12 DIG_GND
13 EMER
14 RS232_TXD (NC)†
15 RS232_RTS (NC)†
RS232_CTS
16
(PS_AUD_OUT)†
17 AUX_TX_AUD
18 SWB+
19 BUS–
20 RESET
21 NC
22 NC (RS232_TXD)†
VSENSE2
23
(RS232_RTS)†
24 VSENSE2_SHLD
25 NC (RS232_CTS)†
Notes: † indicates TRC information
NC indicates Not Connected
6881086C22-B
Table 9 contains pin descriptions for Accessory Connector 3. See Figure 4 on
page 16 for pin locations on mating connector.
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C a u t i o n

Table 9. Accessory Connector 3 - Pin Descriptions

RS232 receive data (pin not used on TRC)†
Ground: audio or analog
External SECURENET not supported by the Consolette
RX filtered audio (RX detect or discriminator audio)†
+13.8 Vdc or battery voltage
Busy line of data bus; 5V logic
High side of bus data: 180° out of phase with BUS–; 5V logic
Ground for data bus; logic ground
External SECURENET not supported by the Consolette (RS232 receive data)
Ground for VSENSE; analog ground
Tape recorder audio output
Ground for 5V logic signals
Activates emergency MDC1200 transmission
RS232 transmit data (pin not used on TRC)†
RS232 request to send (pin not used on TRC)†
RS232 clear to send (external SECURENET not supported by the Consolette)†
External SECURENET not supported by the Consolette
Switched +13.8 Vdc or battery voltage
Low side of bus data: 180° out of phase with BUS–; 5V logic
Data bus reset line; 5V logic
Currently not used
Pin not used on AIB (RS232 Transmit data)†
External SECURENET not supported by the Consolette (RS232 request to send)†
Ground for VSENSE; analog ground
Pin not used on AIB (RS232 clear to send)†
Installation: Accessory Connector 3
To avoid possible damage to external equipment
and the Consolette, make sure equipment is
connected to the proper accessory connector pins
before applying power to the station.
Description
15