Motorola ASTRO Digital Spectra, Instruction Manual

Page: 52 / 114

Theory of Operation: Tone Remote Control Board
30 6881086C22-B
Smart Modem Protocol
(SMP) Control
The ASTRO Tone Remote Control Board also provides an RS232 port through
which the Consolette communicates with an ASTRO Console Interface
Module (ACIM) using the Smart Modem Protocol (SMP).
NOTE: For correct operation, the ACIM must be connected to a Gold
Series Console programmed with System 3.0 Conventional
or later.
Depending on the setting of S100-3, the operation of the Tone Remote Control
board can vary as follows:
S100 Pin 3 ON—Tone Remote
Control In this setup, the Consolette can only be controlled remotely by a tone remote
deskset, via the wireline, as described in “General Description” on page 23
under “Tone Remote Control Board.” The Consolette will report both PTT-IDs
and Call Alert IDs, when applicable, to Accessory Connector 1 (J13). See
Table 13. For a list of supported IDs, see Table 14 on page 31.
Figure 9. TRC to ACIM Cable Diagram
Table 13. Accessory Connector 1 (J13)
J13
Pin Number
Signal
1 N/C
2 N/C
3 N/C
4 ACIM_TXD
5 N/C
6 ACIM_RXD
7 N/C
8 GND
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
To
Accessory 1
of the TRC
To the ACIM
ACIM_TXD
ACIM_RXD
GND
MAEPF-27878-O