4.3 CLOCKING / APPLICATION DIAGRAM
DMM-4DC OPERATIONS MANUAL
Page 10
4 RTS
5 CTS
3 RX DATA
17 RX CLOCK
15 TX CLOCK
2 TX DATA
6 DSR
CONTROL
A N D
BUFFER
INTERNAL
TIMING
8 DCD
9 + TEST
10 - TEST
20 DTR
24 X TX CLOCK
+12
+12
+12
+12
+12
-12
DCD 8
RX DATA 3
RX CLOCK 17
TX CLOCK 15
X TX CLOCK 24
TX DATA 2
RTS 4
DTR 20
CTS 5
DSR 6
TERMINAL HOST
CONNECTED TO
DMM-4, MASTER PORT
DMM-4
MODEM
CONNECTED TO
DMM-4, PORT 1
MODEM 2
MODEM 3
MODEM 4
SET TO
: EXTERNAL TRANSMIT CLOCK
(TERMINAL TIMING)
MODEM
(SLAVE)
SET TO
: RECEIVE CLOCK
(SLAVE CLOCK)
DMM-4 CLOCKING AND SIGNAL ROUTING DIAGRAM
CSU/DSU
TERMINAL
TERMINAL
DIGITAL MIXING
MODULE, DMM-4
TERMINAL
TERMINAL
DIGITAL
MIXING
MODULE
DMM-4
HOST
CPU
EAST
COAST
DATACOM
DME, SYNC
LINE DRIVER
DME, SYNC
LINE DRIVER
TERMINAL
DME, SYNC
LINE DRIVER
DME, SYNC
LINE DRIVER
TERMINAL
PRIVATE 4-WIRE
PRIVATE 4-WIRE
DMM-4DC APPLICATION DIAGRAM
EAST COAST DATACOM, INC.
TEL: (800) 240-7948 OR (321) 637-9922
WWW.ECDATA.COM
CSU/DSU
CSU/DSU
CSU/DSU
CSU/DSU
CSU/DSU
CSU/DSU
CSU/DSU
TERMINAL
DMM-4DC
