Comtech EF Data SMS-451 - Manual (Page 42)

SMS-451 Satellite Switch Revision 0
Installation MN/SMS451.IOM
2-16
2.3.3.1 ESC “A” Connector Pin Assignments (J16 and J26)
The ESC prime interface is provided on a 50-pin female D connector. Screw locks are
provided for mechanical security of the mating connector.
Signal Function Name Pin #
GROUND A-GND 1, 9, 50
SEND 64 KBPS DATA 1 A-SD1-A
A-SD1-B 34
18
SEND 64 KBPS TIMING 1 A-ST1-A
A-ST1-B 2
35
SEND 64 KBPS DATA 2 A-SD2-A
A-SD2-B 19
3
SEND 64 KBPS TIMING 2 A-ST2-A
A-ST2-B 36
20
SEND 64 KBPS DATA 3 A-SD3-A
A-SD3-B 4
37
SEND 64 KBPS TIMING 3 A-ST3-A
A-ST3-B 21
5
SEND 64 KBPS DATA 4 A-SD4-A
A-SD4-B 38
22
SEND 64 KBPS TIMING 4 A-ST4-A
A-ST4-B 6
39
SEND 64 KBPS DATA 5 A-SD5-A
A-SD5-B 23
7
SEND 64 KBPS TIMING 5 A-ST5-A
A-ST5-B 40
24
TX OCTET A-TOCT-A
A-TOCT-B 8
41
SPARE A-SPR-1
A-SPR-2
A-SPR-3
25
42
26
RX OCTET A-ROCT-A
A-ROCT-B 10
43
RECEIVE 64 KBPS TIMING 5 A-RT5-A
A-RT5-B 27
11
RECEIVE 64 KBPS DATA 5 A-RD5-A
A-RD5-B 44
28
RECEIVE 64 KBPS TIMING 4 A-RT4-A
A-RT4-B 12
45
RECEIVE 64 KBPS DATA 4 A-RD4-A
A-RD4-B 29
13
RECEIVE 64 KBPS TIMING 3 A-RT3-A
A-RT3-B 46
30
RECEIVE 64 KBPS DATA 3 A-RD3-A
A-RD3-B 14
47
RECEIVE 64 KBPS TIMING 2 A-RT2-A
A-RT2-B 31
15
RECEIVE 64 KBPS DATA 2 A-RD2-A
A-RD2-B 48
32
RECEIVE 64 KBPS TIMING 1 A-RT1-A
A-RT1-B 16
49
RECEIVE 64 KBPS DATA 1 A-RD1-A
A-RD1-B 33
17