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Canoga Perkins
4.9.5 External
The External function is used when network equipment is set for Network or Inter-
nal Timing (see Figures 4-12 and 4-13). When connecting KG or KIV encryptors
on the Red side to a DTE device, you should install the external strapped header in
the J3 position. In this application, the modems are acting as an extension of the Red
side cable in a true tail circuit. The modem at the Red end is set for external clock
and the modem at the DTE end is set for slave clock. This header is provided with
the interface.
KG/KIV
RED
BLK
Clock
Rem/Loc
Rate mode
RxD
SCR
SCT
FIFO
Clock
CTS
DSR
RTS
84
CANOGA
MM or SM
PERKINS
Loop
Optics
Data
Off
Pwr
2270
Fiber Optics
Fiber
Modem
Rx
Tx
On
RX
TX
P/N 6100030-001
KG Swing
Jumpers
FIFO
Data Out
Data In
W19
8
Shift Out
W20
RLSD
10
5
12
3
19
16
17
13
9
15
14
12
20
16
23
24
17
SCTE
11
2
18
TxD xD
14
7
SG
P/N 6100030-001
1
FG
5
13
6
From Modem
22
4
To Modem
19
18
LL
To Modem
21
RL
Off
Loop
Pwr
Clock
Rem/Loc
Rate mode
On
Modem
Alarm
n
Shift I
3
4
9
From
Rx Data
6
Fiber
1
Inverter
2
11
IN
Delay
OUT
Line
10
Internal
15
Clock From
Modem
7
Tx Clock
To
Fiber
Tx Data
8
Wire Wrap
Net List
3-6
4-9
5-16
7-17
8-18
12-19
CANOGA
PERKINS
DTE
Data
Optics
2270
Fiber
Tx
Modem
RX
TX
Rx
Figure 4-12.
External
Programmable Buff-
ered Interface, Model
P53, DCE RS-530
Figure 4-13.
External
Programmable
Buffered Interface,
Model P53
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