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Health Care System IIIAdvanced Use
TO MAKE AN IP CALL WHEN ‘LEASED LINE’ IS SELECTED, ENTER A NUMBER BEFORE PRESSING CONNECT TO ACTIVATE THE
DIAL MENU.
TIP
Call control
‘RS366 Dialing’ is the only dialing protocol and would normally be used together with network clocking
‘RS449/V35 Compatible’ when the external equipment uses RS366 ports.
‘Leased Line’ is a non-dialing protocol and should be used when only two codecs are connected in a point to
point connection. Use ‘Leased Line’ when handshake signals DTR and CD are available. DTR and CD
correspond to the X21 network’s C and I signals.
‘Data Triggered’ mode uses TxData (transmit data), RxData (receive data) and clock signals only. Use
‘Data Triggered’ when no handshake signals are available.
‘Manual’ should be used when no handshake signals are available, and the external equipment requires a
constantly connected line.
Network clocking
The network clock setting specifies the number of physical external clock signals.
Use ‘RS449/V35 Compatible’ when the external equipment provides two clock signals, one for transmit and
one for receive. The difference between RS449 and V35 is the cable only.
Use ‘X21 Compatible’ when external equipment provides a common clock signal for both transmit and
receive.
Cable Specification, V.35
V.35/RS-366 cable
Signal Name Female Male 34pin Male 25pin Comments
26pin DSUB Winchester DSUB
Pin number Pin number
Frame ground 1 A
Signal ground 19,23 B
TX(A), transmit data 11 P Twisted pair
TX(B) 12 S
RX(A), receive data 13 R Twisted pair
RX(B) 14 T
RCLK(A), rcv clock 15 V Twisted pair
RCLK(B) 16 X
TCLK(A), xmt clock 17 Y Twisted pair
TCLK(B) 18 AA
DTR 26 H, C
RI 24 L, J
RLSD 22 F
RS366 DPR 2 2
RS366 ACR 3 3
RS366 CRQ 4 4
RS366 PND 5 5
RS366 DLO 6 22
RS366 NB1 7 14
RS366 NB2 8 15
RS366 NB4 9 16
RS366 NB8 10 17
RS366 GND 19 7
Cable Marking NET DSU V.35 DSU RS366