Kernick Industrial Estate,
Penryn, Cornwall,
England. TR10 9LU
+44 (0)8707 556250
+44 (0)8707 556251 1
iDR-8 COMMS1 PCB
C4505 12
PAGE:
TITLE:
DRG No: ISSUE: SHEET: OF
ISSUE BY DATE
FILE: C4505_1P2.Sch 09:33:58 27-Sep-2004
ALLEN&HEATH
Tel:
Fax: PRINTED:
ABCDEFGH
a
b
c
d
e
CHK
BY
DGND
+3V3
TXD232
RXD232
L8 DSS306
L7 DSS306 DGND
DGND
DGND
T1IN 11
T2IN 10
R1OUT 12
R2OUT 9
T1OUT
14
T2OUT
7
R1IN
13
R2IN
8
VCC 16
C1+
1
C1-
3
C2+
4
C2-
5
GND
15
V+ 2
V- 6
U2
MAX3232
C6
100N 100V/MLC
C12
100N 100V/MLC
C10
100N 100V/MLC
C11
100N 100V/MLC
C9
100N 100V/MLC
DGND
L5 DSS306
RS232 Tranceivers
CD
RXD
TXD
DTR
RTS
CTS
L6 DSS306
DGND
+3V3
REAR232EN_L
CTS1
DGND
DGND
DGND
T1IN 11
T2IN 10
R1OUT 12
R2OUT 9
T1OUT
14
T2OUT
7
R1IN
13
R2IN
8
VCC 16
C1+
1
C1-
3
C2+
4
C2-
5
GND
15
V+ 2
V- 6
U1
MAX3232
C5
100N 100V/MLC
C8
100N 100V/MLC
C4
100N 100V/MLC
C7
100N 100V/MLC
C3
100N 100V/MLC
L3 DSS306
L4 DSS306
LD6
LED T1 3MM GREEN
CPU Connector
DGND
L1
DSS306
L2
DSS306
1
4
2
5
3
0
CN4 DIN SKT FEMALE HA 5 PIN 180 DEG
1
4
2
5
3
0
CN5 DIN SKT FEMALE HA 5 PIN 180 DEG
1
4
2
5
3
0
CN6 DIN SKT FEMALE HA 5 PIN 180 DEG
C18
1N/MYL
C20
1N/MYL
C19
1N/MYL
C21
1N/MYL
C22
1N/MYL
C23
1N/MYL
L9
4.7UH
L10
4.7UH
L11
4.7UH
L12
4.7UH
L13
4.7UH
L14
4.7UH
R3
220R
R1
220R
R2
220R
R4
220R
R5
220R
R6
560R
R7
560R
D1
1N4148
Q2
BC549
Q1
BC549
DGND
DGND
+5V
+5V
2
3
5
6
7 8
U3
6N136
+3V3
DGND
C13
100N 100V/MLC
MIDI OUT
MIDI IN
MIDI THRU
+5V
+5V
Control Port RS232 Female D-Type (DTE)
Modem and PC RS232 Male D-Type (DCE)
DCD1
MIDI Connectors
C25
47/25
C24
47/25
DGND
Note: Use a null modem cable if connecting to a PC.
REAR232EN_L
TXDCP
RXDCP
REAR232EN_L
RXDCP
TXDCP
DGND
Optional Grounding Link
RXD2
TXD2
DCD1
CTS1
FRONT232EN_L
ETX-ETX+
DGND
ERX-ERX+
ETXLED_LELINKLED
+5V
+3V3
DGND
DGND
1
122
3
344
5
566
7
788
9
910 10
11
11 12 12
13
13 14 14
15
15 16 16
17
17 18 18
19
19 20 20
21
21 22 22
23
23 24 24
25
25 26 26
CN1
BOX 13X2 M STRT
GPIO_SPARE1
GPI/P_SPARE1
RS232 and MIDI
C2
100N 100V/MLC
C1
100N 100V/MLC
DGND
1
6
2
7
3
8
4
9
5
CN2
DB9FH(DMR)
1
6
2
7
3
8
4
9
5
CN3
DB9MH(DMR)
LD5
LED T1 3MM GREEN
LD4
LED T1 3MM GREEN
LD1
LED T1 3MM GREEN
+3V3
DGND
+3V3
1
2
3
4
5
6
CN10
SIL 6 M STRT (NOT FITTED)
+3V3
DGND
FRONT232EN_L
DGND
+3V3
RXD485
TXD485
TXD1COMMS
RXD1COMMS
COMMSSEL0
COMMSSEL1
COMMSSEL2
TXD1COMMS
RXD1COMMS
COMMSSEL0
COMMSSEL1
COMMSSEL2
TXD485
RXD485
RXD2
TXD2
RXD232
TXD232
COMMSSEL SMC1 SMC2
210
000 CP MIDI
001 MIDI CP
010 232 MIDI
011 232 CP
100 CP 485
101 MIDI 485
1 1 0 232 485
1 1 1 232 485
COMMS SELECTION TABLE
C14
100N 100V/MLC
C15C29
DGND
FITTED IN SOCKET
GLG 21/06/01
JB 10/09/01
A
B
JB 8/01/02C
R25
10K
+3V3
RXD485 1
RXDMIDI
2
CPLED_L 3
MIDILED_L 4
PGND
5
PGND
6
PGND
7
PGND
8
232LED_L 9
GND
10
PGND
11
485LED_L 12
PGND
13
REAR232EN_L 14
TDI 15
TMS 16
TCK 17
PGND
18
TXD232 19
PGND
20
VCC 21
TXD485 22
GND
23
RXDCP 25
MIDITHRU_L
26
RXD232 27
PGND
28
TXDMIDI_L
29
TDO 30
GND
31
VCC 32
FRONT232EN_L 33
COMMSSEL2
34
TXDCP 35
COMMSSEL0
36
COMMSSEL1
37
RXD2 38
TXD1COMMS
39
TXD2 40
VCC 41
PGND
42
PGND
43
RXD1COMMS
44
PGND
24
U4
XC9536XL-10PC44C
CN11
PLCC44 CHIP SOCKET
R10
RES NF
R9
390R
R8
390R
R11
470R
R12
470R
R13
470R
R14
470R
ISSUE C1 PCB BECOMES ISSUE 1 21/06/02
LK23
LINK OPT
DRCOMMS
D23
