Installation: Accessory Connector 3
6881086C22-B 15
Accessory
Connector 3
Table 9 contains pin descriptions for Accessory Connector 3. See Figure 4 on
page 16 for pin locations on mating connector.
Notes: † indicates TRC information
NC indicates Not Connected
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.
Table 9. Accessory Connector 3 - Pin Descriptions
Pin Signal Name Description
1 RS232_RXD (NC)† RS232 receive data (pin not used on TRC)†
2 ANA_GND Ground: audio or analog
3 AUX_RX_AUD External SECURENET not supported by the Consolette
4
FILT_AUD
(DET_AUD)†
RX filtered audio (RX detect or discriminator audio)†
5 A+ +13.8 Vdc or battery voltage
6 BUSY Busy line of data bus; 5V logic
7 BUS+ High side of bus data: 180° out of phase with BUS–; 5V logic
8 BUS_SHLD Ground for data bus; logic ground
9
VSENSE1
(RS232_RXD)†
External SECURENET not supported by the Consolette (RS232 receive data)
10 VSENSE1_SHLD Ground for VSENSE; analog ground
11 TAPE_OUT Tape recorder audio output
12 DIG_GND Ground for 5V logic signals
13 EMER Activates emergency MDC1200 transmission
14 RS232_TXD (NC)† RS232 transmit data (pin not used on TRC)†
15 RS232_RTS (NC)† RS232 request to send (pin not used on TRC)†
16
RS232_CTS
(PS_AUD_OUT)†
RS232 clear to send (external SECURENET not supported by the Consolette)†
17 AUX_TX_AUD External SECURENET not supported by the Consolette
18 SWB+ Switched +13.8 Vdc or battery voltage
19 BUS– Low side of bus data: 180° out of phase with BUS–; 5V logic
20 RESET Data bus reset line; 5V logic
21 NC Currently not used
22 NC (RS232_TXD)† Pin not used on AIB (RS232 Transmit data)†
23
VSENSE2
(RS232_RTS)†
External SECURENET not supported by the Consolette (RS232 request to send)†
24 VSENSE2_SHLD Ground for VSENSE; analog ground
25 NC (RS232_CTS)† Pin not used on AIB (RS232 clear to send)†
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