43
Specifications
Specifications
Dimensions
7798 I/SITE LAN:
. . . . . . . . . . . . . . .11.00" L
×
10.00" W
×
3.25" D
. . . . . . . . . . . . . . . . . . . (27.9
×
25.4
×
8.3 cm)
Operating Environment
Temperature:
50˚F to 104˚F (10˚C to 40˚C)
Humidity:
10 to 90%, non-condensing
7798 I/SITE LAN Input power:
24 VAC
±
10%,
50/60 HZ (40 VA max)
I/SITE LAN Telephone Numbers
The 7798 I/SITE LAN can store the following telephone
number information:
✦
Maximum of 8 groups
✦
Maximum of 8 telephone numbers
✦
Maximum of 31 characters per telephone number
Due to memory limitations, all maximum values cannot be
achieved simultaneously.
7798 I/SITE LAN Controller LAN Port
Description: SDLC protocol using a token passing bus.
Interface:
RS485
Baud Rate:
19.2 Kbaud typical, 9600 baud alternate.
Sub-controller LAN Port
Description: Asynchronous protocol using a polling method.
Interface:
RS485 primary and alternate
Baud Rate:
9600 Baud
Cables
LAN:
22 AWG (0.324 mm
2
) shielded, twisted pair, solid
(Belden 9184 or 9855) 5,000 feet (1,500 m) per
segment
or
24 AWG (0.206 mm
2
) shielded, twisted pair,
stranded (Belden 9841) 4,000 feet (1,200 m) per
segment.
Memory
EPROM:
32 KBytes
NOVRAM:
512 Bytes
Static RAM:
256 KBytes
Battery Backup:
Onboard NiCad, rechargeable. Maintains
static RAM for up to 300 hours.
Note:
The backup battery must be fully charged in order to
provide the full span of backup power. Due to normal
discharge during product storage and shipment, the
battery may not be fully charged immediately
following installation and power-up. You must allow
the controller to operate continuously for a minimum
of seven days (168 hours) before depending on
battery backup.
Содержание 7798 I/SITE LAN
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