Sky Connect DO-160 - Page 17

1616-920-03
8/28/2014
Rev: B
4
2.3.2 MMUIIPINASSIGNMENTS

ThetablebelowindicatesthepinoutoftheMMUII

J1‐Data J2‐Audio
1 28VDC 1 PolarizedKey
2 PolarizedKey 2 28VDC
3 RS485HI 3 28VDimmerInput
4 RS485LO 4 5VDimmerInput
5 RS485HI 5 POTSRing
6 RS485LO 6 POTSTip
7 UnitID#1 7 Ground
8 UnitID#2 8 RingerAudioHI
9 UnitID#4 9 Ground
10 UnitID#8 10 PhonesHI
11 SpareI/O#1 11 Ringer
12 Ground 12 Ground
13 Ground 13 MicHI
14 SpareI/O#2 14 Ground
15 MessageAlert 15 Ground
16 IncomingCall 16 Ground
17 DTROut 17 RS232RX‐Reserved
18 Ground 18 Ground
19 DSRIn 19 KeyIn
20 Ground 20 RingerAudioLO
21 5VDimmerInput 21 RS232TX‐Reserved
22 14VDimmerInput 22 PhonesLO
23 28VDimmerInput 23 Ground
24 MMURS232Input(RX) 24 KeyOut
25 MMURS232Output
(TX)
25 MicLO