Telos Z/IP ONE - 12 Ancillary Data; Gpio

ANCILLARY DATA | 49
12 Ancillary Data
Along with the coded audio, the Z/IP ONE is able to send associated data. One example of how this is used is for sending
connection quality statistics to the remote Z/IP ONE. This data channel is also available to send user data to the remote
codec.
12.1 GPIO
The first use of the ancillary data channel is for sending General Purpose Input/Output (GPIO) signals. These are
individual signals, or bits, that can be used to control or read status from a local Z/IP ONE or send information to a remote
Zephyr/IP.
The Z/IP ONE has a DB25 connector on the back panel that provides contact closures (close-to-ground) inputs and
outputs. In addition, the Z/IP ONE supports Livewire GPIO. While only one of these may be used for inputs at any given
time, the outputs are always available on both interfaces.
PARALLEL PORT PIN LIVE WIRE PORT LIVEWIRE BIT FUNCTION
1 +5 Volts DC, 400mA maximum
2 GPI 1 1 Output 1
3 GPI 1 2 Output 2
4 GPI 1 3 Output 3
5 GPI 1 4 Output 4
6 GPI 2 1 Output 5
7 GPI 2 2 Output 6
8 GPI 2 3 Output 7
9 GPI 2 4 Output 8
10 No Connection
11 No Connection
12 No Connection
13 No Connection
14 GPO 1 1 Input 1
15 GPO 1 2 Input 2
16 GPO 1 3 Input 3
17 GPO 1 4 Input 4
18 GPO 2 1 Input 5
19 GPO 2 2 Input 6
20 GPO 2 3 Input 7
21 GPO 2 4 Input 8
22 No Connection
23 No Connection
24 No Connection
25 Ground