Keri Systems NXT-1RE, Руководство по установке

Страница: 3 / 6

NXT-1RE/-3RE/-5RE Exit Reader
Installation Guide
Page 3 of 6 P/N: 01250-001 Rev. C
Table 1: Reader and 4x4 Cable Options
Connection Type
Total Run
Length
Minimum
AWG
Shielded,
Stranded,
2 Twisted-
Pair
a
a. Keri recommends this cable type for best system performance.
CAT-5
b
b. Keri’s preferred low-cost option. Keri has no suggested vendor for this type of cable.
Shielded,
Stranded,
4-Conductor
c
c. Use care when routing this type of cable as it can make the system more susceptible to EMI.
Suggest Suggest
RS-485 bus

from NXT-2D/-4D

to NXT-4x4 only
up to
500 feet
18 - Power
22 - Data
Belden
8723
shielded Windy City:
414302-S
Tappan:
1880AB4M-CM
RS-485 bus

from NXT-2D/-4D

to NXT-4x4 and one NXT Reader
or to two NXT Readers
up to
500 feet
18 - Power
22 - Data
Belden
8723
shielded Windy City:
414302-S
Tappan:
1880AB4M-CM
RS-485 bus

from NXT-2D/-4D

to one NXT Reader only
up to
1,000 feet
18 - Power
22 - Data
Belden
8723
shielded Windy City:
416303-S
Tappan:
2280AB4M-CM