19
LED Status
Description
On
The port is in loopback state.
Flashing
There is a minimum of one alarm.
Interface specifications
Table 18
Interface specifications
Item Specification
Connector type
SFP/LC
Number of interfaces
•
HIM-AL1P: 1
•
HIM-AL2P: 2
Interface standards
SONET OC-3C/SDH STM-1
Interface speed
155.52 Mbps
Optical
transit
power
Type
Short distance
Medium distance
Long distance
Ultra-long
distance
Min.
–19.0 dBm
–15.0 dBm
–5.0 dBm
–5.0 dBm
Max.
–14.0 dBm
–8.0 dBm
0 dBm
0 dBm
Receiving sensitivity
–30.0 dBm
–28.0 dBm
–34.0 dBm
–34.0 dBm
Overload optical power –14.0 dBm
7.0 dBm
–9.0 dBm
–10.0 dBm
Central wavelength
1310 nm
1310 nm
1310 nm
1550 nm
Max. transmission
distance
2 km (1.24 miles) 15 km (9.32 miles)
40 km (24.86
miles)
80 km (49.71
miles)
Fiber type
62.5/125
μ
m
multi-mode
9/125
μ
m
single-mode
9/125
μ
m
single-mode
9/125
μ
m
single-mode
Interface cables
The HIM-AL1P/HIM-AL2P must work with an SFP transceiver module and an optical fiber with LC-type
connectors. For the appearance and connection of a HIM-AL1P/HIM-AL2P interface cable, see
"
Connecting an optical interface cable
HIM-RS2P (RT-HIM-RS2P-H3)
The HIM-RS2P is a 2.5 Gbps OC-48/STM-16 Resilient Packet Ring (RPR) interface module. It provides two
SFP RPR ports and two SFP Mate ports. Each RPR port is provided with six status LEDs, which show the
running status and fault detection status of RPR and optical interface at the physical layer.
The HIM-RS2P supports:
•
Two frame formats: SDH STM-16 and SONET OC-48C.
•
Line clock mode and internal clock mode.
•
Loopback tests such as data loopback test, external SONET/SDH loopback test, and external link
loopback test.
•
Hot swapping.
