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Pelco Manual C546M (8/98) 11
3.2 SOFTWARE
3.2.1 Address Details
Normally, up to 16 camera receiver/drivers can be connected to one SerCom 8 port
on a CM9760-CC1; however, up to 128 camera receiver/drivers can be connected
to the same port through expansion by using a Port Expander. Camera receiver/
drivers are numbered from 1 to 16. To uniquely identify each camera receiver/driver
connected via a Port Expander Card, the receiver/driver must be numbered from 1
to 128.
Up to 16 camera receiver/drivers can be connected to each port on the CM9760-CC1.
These receiver/drivers are addressed as per normal; that is, from 1 to 16 (refer to
the appropriate receiver/driver manual for instructions on setting receiver/driver
addresses). The SET9760 program (part of the CM9760-MGR package) is used to
number the camera receiver/drivers from 1 to 128. The receiver/driver address and
the port on the CM9760-PEX the receiver/driver is connected to is used to uniquely
identify each receiver/driver. Table A details how camera receiver/drivers are
numbered from 1 to 128. In each instance the receiver address can be computed
according to the following formula, if you know the receiver/driver address and the
port to which it is connected on the Port Expander.
EXAMPLE:
A camera receiver/driver has an address of 12;
It is connected to comm port 7 on the CM9760-PEX.
The allocated address would be 108 and is computed according to the following
formula (you may also use the lookup table in Table C):
Address = Receiver/driver address + [(Comm Port # - 1) x 16]
= 12 + [ ( 7 - 1) x 16]
= 12 + [ 6 x 16]
= 12 + [ 96 ]
= 12 + 96 = 108
CM9760-PEX - PORT NUMBER (1-8)
Receiver/Driver Address 1 2345678
1 1 17 33 49 65 81 97 113
2 2 18 34 50 66 82 98 114
3 3 19 35 51 67 83 99 115
4 4 20 36 52 68 84 100 116
5 5 21 37 53 69 85 101 117
6 6 22 38 54 70 86 102 118
7 7 23 39 55 71 87 103 119
8 8 24 40 56 72 88 104 120
9 9 25 41 57 73 89 105 121
10 10 26 42 58 74 90 106 122
11 11 27 43 59 75 91 107 123
12 12 28 44 60 76 92 108 124
13 13 29 45 61 77 93 109 125
14 14 30 46 62 78 94 110 126
15 15 31 47 63 79 95 111 127
16 16 32 48 64 80 96 112 128
Table A. Address Lookup Details