Data Sheet
Specifications
INTERFACE MODULES
Number of Modules
Up to 2 per unit
STM-1/OC-3C INTERFACE
Number of Ports
Up to 8 in total, 4 per single interface
module (4+4 in APS mode)
Data Rate
155 Mbps
Operation Mode
SDH or SONET, ATM UNI
Compliance
Physical layer and ATM mapping into
STM-1/OC-3 according to I.432
Automatic protection switching (APS)
according to G.841 Annex B (1+1,
bidirectional)
Jitter Tolerance
Output: according to G.825
Tolerance: according to G.823
Transfer: according to G.783
Fiber Optic Interface Type
Small Form-Factor Pluggable (SFP):
single mode, multimode LED, short haul or
long haul laser
GIGABIT ETHERNET INTERFACE
Number of Ports
2 in total, 1 per single interface module
Data Rate
1000 Mbps
Compliance
IEEE 802.3z, 802.1Q, 802.1p
Max. Frame Size
1600 bytes
Operation Mode
Full-duplex
Connector
Fiber optic via SFP transceiver
Note: The STM-1/OC-3c and Gigabit Ethernet ports
require SFP transceivers that are fitted into the
empty cage.
SFPs
For full details, see the SFP Transceivers
data sheet at www.rad.com
Note: It is strongly recommended to order this
device with original RAD SFPs installed. This will
ensure that prior to shipping, RAD has performed
comprehensive functional quality tests on the
entire assembled unit, including the SFP devices.
RAD cannot guarantee full compliance to product
specifications for units using non-RAD SFPs.
ETHERNET CONTROL PORT
Type
100BaseTX, full-duplex
Compliance
IEEE 802.3
Connector
RJ-45
TERMINAL CONTROL PORT
Type
RS-232/V.24 (DCE)
Data Rate
9.6, 19.2, 38.4, 57.6 or 115.2 kbps,
user-configurable
Connector
RJ-45 (RJ-45 to DB-9 adapter cable is
supplied)
STATION CLOCK INTERFACE
Type
Balanced E1, unbalanced E1 (via an
adapter cable) or T1
Impedance
Balanced E1: 120Ω
Unbalanced E1: 75Ω (via an adapter cable)
T1: 100Ω
Connector
RJ-45
GENERAL
Fan Tray
Field-replaceable, two independent
cooling fans
Power
One or two hot-swappable AC or DC:
AC: 100 to 240 VAC, 47–63 Hz
DC: 24 VDC or -48 VDC nominal
Note: AC and DC power supplies cannot be installed
together in the same unit.
Power Consumption
AC: 150 VA max
DC: 80W max
LED Indicators
POWER (green/red) –
Green: power supply is OK
Red: power supply failure
SYS ALM (green/red) –
Green: no system alarm is detected
Red: at least one system alarm has been
detected
FAN (green/red) –
Green: all the fans are working properly
Red: at least one fan is not working
properly
RDY (green) –
On: self-test completed successfully
Blinking: self-test failed
ACTIVE (green) –
On: this main module is in Active mode
Off: this main module is not in Active
mode
STANDBY (green) –
On: this main module is in Standby mode
Off: this main module is not in Standby
mode
ATM-155 SYNC 1–4, 5–8 (green) –
On: the port's physical link is
synchronized
Off: the port's physical link is not
synchronized
Blinking: RDI has been detected
ATM-155 ATM 1–4, 5–8 (green) –
On: ATM cells are being received or
transmitted
Off: ATM cells are not being received or
transmitted
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