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Page 138 - V.35 WAN Cable Appendix E: Cables
V.35 WAN Cable
A
B
C D
E
A 37 Way D-Type Plug with UNC 4-40 locking screws.
B 34 Way MRAC Plug.
C Label
D 10 twisted pair screened cable - each core is 7/0.203mm (24 AWG) tinned
copper stranded wire, nominal capacitance of 98pF/m, impedance of 80 Ω ±
10% at 1MHz, screened with aluminized tape and a tinned copper wire drain.
E 3 meters.
Pin Connections
End A Name Cable Notes End B
8 DTR (Data Terminal Ready) ----- H
11 DCD (Data Carrier Detect) ----- F
12 CTS (Clear To Send) ----- D
27 RTS (Request To Send) ----- C
29 RI (Ring Indicator) ----- J
30 DSR (Data Set Ready) ----- E
32 Transmit Data - A P
14 Transmit Data - B
Twisted Pair
S
35 Receive Data - A R
16 Receive Data - B
Twisted Pair
T
36 Transmit Clock - A Y
17 Transmit Clock - B
Twisted Pair
AA
37 Receive Clock - A V
18 Receive Clock - B
Twisted Pair
X
33 External Clock - A U
15 External Clock - B
Twisted Pair
W
34 Ground ----- B
Connect pins 7 and 25 to pin 6 at End A only.
Pin 19 at end A is connected to the Screened Cable Drain Wire.
The maximum core to core capacitance must not exceed 800pF.
Page 138 - Appendix E: Cables INDeX IPNC Cassette Administration Manual
V.35 WAN Cable 38DHB0002UKDD – Issue 7 (22/11/02)